The Fours - The 400m Hills of England – Hill Reclassifications
The Fours - The 400m Hills of England are the English hills at or above 400m and below 500m in height
that have 30m minimum drop.
Accompanying the main P30 list are three sub lists; these are the 400m Sub-Four, 390m Sub-Four and 390m Double Sub-Four category’s, with their criteria detailed in the
respective Change Registers that are linked in the above titles, with the
Introduction to this list being linked in the above title.
The list is co-authored by Myrddyn
Phillips and Aled Williams and the posts that have appeared on Mapping
Mountains detailing the additions, reclassifications and deletions to the main
P30 list and the sub lists appear below presented chronologically in receding
order.
This was initiated by Joe Nuttall who produced a summit analysis programme that used LIDAR with an alternative height map (DEM) allowing identification of summits and cols and thereby drops. The resulting spreadsheet that Joe produced contains over 29600 hills.
Joe's workings area available as a spreadsheet comprising many thousands of hills and this is being evaluated by a number of people, including Ronnie Bowron, who passed the details of this hill to us for evaluation.
These details have now been re-assessed against the mapping on the OS Maps website. This is the replacement for OS Get-a-map and until recent times had contours at 5m intervals which were proving consistently more accurate compared to the 5m contours that sometimes appear on the Ordnance Survey 1:25,000 Explorer map and used to appear on the online Vector Map Local. This mapping is digitally updated and the position of the 419m spot height has been checked against the col contours which are between 410m – 415m, and found to be on an upslope, with the height of the col estimated to be c 413m.
Standing Stone Hill (SD 950 303) – Double Sub-Four addition (32nd reclassification)
Myrddyn Phillips and Aled Williams (August 2020)
Mapping Mountains - Hill Reclassifications - The Fours
Myrddyn Phillips and Aled Williams (August 2020)
Mapping Mountains - Hill Reclassifications - The Fours
Green Side (NT 906 076) – 390m Sub-Four addition (30th reclassification)
Mapping Mountains - Hill Reclassifications - The Fours
Lord’s Seat (NT 912 079) – 390m Sub-Four reclassified to 390m Double Sub-Four (29th reclassification)
Myrddyn Phillips and Aled Williams (July 2020)
Mapping Mountains - Hill Reclassifications - The Fours
Horn Crag (NY 318 099) – 400m Sub-Four addition (28th reclassification)
Mapping Mountains - Hill Reclassifications - The Fours
Anthony Hill (SK 046 706) – 400m Sub-Four addition (27th reclassification)
The criteria for the list that this addition applies to are:
The name the hill is listed by is Anthony Hill, and it is adjoined to the Axe Edge group of hills, which are situated in the Peak District, and it is positioned with a minor road to its north and south, and the A53 road to its west, and has the town of Buxton to the north north-east.
One of the resources recently available online is the mapping on the OS Maps website and the details for this hill were subsequently re-assessed against this mapping. This is the replacement for OS Get-a-map and until recent times had contours at 5m intervals which were proving consistently more accurate compared to the 5m contours that sometimes appear on the Ordnance Survey 1:25,000 Explorer map and used to appear on the online Vector Map Local. This mapping had col contouring between 385m – 390m, with interpolation placing the height of the col as an estimated c 389m.
Pt. 404.4m (SK 073 698) – 400m Sub-Four deletion (26th reclassification)
The criteria for the list that this deletion applies to are:
The hill is being listed by the point (Pt. 404.4m) notation and it is adjoined to the Axe Edge group of hills, which are situated in the Peak District, and it is positioned with the A515 road to its north-east and has the town of Buxton towards the north north-west.
One of the resources recently available online is the mapping on the OS Maps website and the details for this hill were subsequently re-assessed against this mapping. This is the replacement for OS Get-a-map and had contours at 5m intervals which were proving consistently more accurate compared to the 5m contours that sometimes appear on the Ordnance Survey 1:25,000 Explorer map and used to appear on the online Vector Map Local. This mapping had col contouring between 385m – 390m, with interpolation placing the height of the col as an estimated c 386m, and when coupled with the 405m summit spot height these values gave this hill an estimated c 19m of drop.
Dow Low (SK 099 675) – 400m Sub-Four addition (25th reclassification)
Therefore, the confirmation of the addition of this hill to 400m Sub-Four status is due to LIDAR analysis, resulting in a 414.9m summit height and a 391.2m col height, with these values giving this hill 23.7m of drop, which is sufficient for it to be classified as a 400m Sub-Four.
Mapping Mountains - Hill Reclassifications - The Fours
Dow Low (SK 107 673) – 400m Sub-Four addition (24th reclassification)
Therefore, the confirmation of the addition of this hill to 400m Sub-Four status is due to LIDAR analysis, resulting in a 410.7m summit height and a 387.3m col height, with these values giving this hill 23.3m of drop, which is sufficient for it to be classified as a 400m Sub-Four.
Dow Low (SK 098 678) – 400m Sub-Four addition (23rd reclassification)
Therefore, the confirmation of the addition of this hill to 400m Sub-Four status is due to LIDAR analysis, resulting in a 419.2m summit height and a 398.0m col height, with these values giving this hill 21.2m of drop, which is sufficient for it to be classified as a 400m Sub-Four.
Mapping Mountains - Hill Reclassifications - The Fours
Mapping Mountains - Hill Reclassifications - The Fours
Back Pasture Hill (SD 905 680) – 400m Sub-Four addition (21st reclassification)
The name the hill is listed by is Back Pasture Hill and it is adjoined to the Pen y Ghent group of hills, which are situated in the central Pennines, and it is positioned with minor roads to its north-west, south and north-east, and the B6160 road to its east, and has the small communities of Arncliffe towards the north north-east and Malham towards the south.
Since the 1st edition of this list was published by Europeaklist in December 2013 there have been a number of maps made available online. Some of these are historic such as the series of Six-Inch maps on the National Library of Scotland website. Whilst others were digitally updated such as the Ordnance Survey Vector Map Local that was hosted on the Geograph website and which was entitled the Interactive Coverage Map, whilst others are current and digitally updated such as the interactive mapping on the Magic Maps and WalkLakes websites.
Therefore, the addition of this hill to 400m Sub-Four status is due to detail on contemporary maps produced from Ordnance Survey data and subsequently confirmed from LIDAR analysis, resulting in a 485.8m summit height and a 464.4m col height, with these values giving this hill 21.4m of drop, which is sufficient for it to be classified as a 400m Sub-Four.
Kitley Hill (NY 989 051) – 400m Sub-Four deletion (20th reclassification)
The criteria for the list that this deletion applies to are:
The name of the hill is listed by is Kitley Hill and it is adjoined to the Great Shunner Fell group of hills, which are situated in the Northern and Central Pennines, and it is positioned above the Arkle Beck and the valley of Arkengarthdale which are to its south.
When the 2nd edition of the The Fours – The 400m Hills of England was published by Mapping Mountains Publications in April 2018, this hill was not included in the accompanying sub list, as it was considered not to meet the criteria used for this sub category, based on analysis of data on the OS Maps website. This mapping gives contour intervals at 5m which has enabled the height of the col to be narrowed down when compared to the 10m contour intervals given on the Ordnance Survey 1:50,000 Landranger and 1:25,000 Explorer maps, resulting in it being listed with an estimated c 17m of drop.
Citron Seat (NY 977 102) – 400m Sub-Four deletion (19th reclassification)
The criteria for the list that this deletion applies to are:
The name of the hill is listed by is Citron Seat and it is adjoined to the Great Shunner Fell group of hills, which are situated in the Northern and Central Pennines, and it is positioned above the River Greta and the A66 road which are to its north and the village of Bowes which is to its north north-east.
When the 2nd edition of the The Fours – The 400m Hills of England was published by Mapping Mountains Publications in April 2018, this hill was not included in the accompanying sub list, as it was considered not to meet the criteria used for this sub category, based on analysis of data on the OS Maps website. This mapping gives contour intervals at 5m which has enabled the height of the col to be narrowed down when compared to the 10m contour intervals given on the Ordnance Survey 1:50,000 Landranger and 1:25,000 Explorer maps, resulting in it being listed with an estimated c 18m of drop.
Therefore, the confirmation of the deletion of this hill from 400m Sub-Four status is due to LIDAR analysis, resulting in a 446.2m summit height and a 428.6m col height, with these values giving this hill 17.7m of drop, which is insufficient for it to be classified as a 400m Sub-Four.
The criteria for the list that this deletion applies to are:
The name the hill is listed by is Brownberry and it is situated in the Northern and Central Pennines and is placed in Region 35, Section 35A with its Cardinal Hill being Cross Fell (NY 687 343). The hill is positioned above the Grassholme Reservoir which is to its north and the Hury Reservoir to its south-east and has the small market town of Middleton-in-Teesdale towards the north.
Myrddyn Phillips and Aled Williams (July 2018)
Haystack (NY 300 013) – 400m Sub-Four deletion (17th reclassification)
The Fours - The 400m Hills of England takes in all English hills at or above 400m and below 500m in height that have 30m minimum drop. Accompanying the main list are three categories of sub hills, with this hill being deleted from the 400m Sub-Fours; the criteria for which are all English hills at or above 400m and below 500m in height that have 20m or more and below 30m of drop. The list is co-authored by Myrddyn Phillips and Aled Williams and the 2nd edition of the booklet containing this list was published by Mapping Mountains Publications on the 24th April 2018.
Mapping Mountains - Hill Reclassifications - The Fours
Myrddyn Phillips and Aled Williams (July 2018)
Little Meldrum (NY 422 227) – 400m Sub-Four deletion (15th reclassification)
Mapping Mountains - Hill Reclassifications - The Fours
The full details for the hill are:
Myrddyn Phillips and Aled Williams (June 2018)
Mapping Mountains - Hill Reclassifications - The Fours
Pt. 465.1m (NT 830 141) – 400m Sub-Four reclassified to Four (13th reclassification)
Therefore, the confirmation of the reclassification of this hill from Sub-Four status is due to LIDAR analysis, resulting in a 465.1m summit height and a 433.1m col height, with these values giving this hill 32.1m of drop, which is sufficient for it to be classified as a Four.
Mapping Mountains - Hill Reclassifications - The Fours
Pt. 423.9m (SX 753 768) – 400m Sub-Four addition (12th reclassification)
The criteria for the list that this addition applies to are:
The hill is being listed by the Point (Pt. 423.9m) notation and it is adjoined to the Broad Barrow group of hills, which are situated in Dartmoor in the south-west of England, and it is positioned with minor roads to its north, north-west and north-east, and the B3387 road to its south, and has the small community of Haytor Vale towards the east north-east.
When the 1st edition of the The Fours was published by Europeaklist in December 2013, this hill was not included in the 400m Sub-Four category and was listed with an estimated c 18m of drop, based on the 422m summit spot height that appeared on the Ordnance Survey Vector Map Local hosted on the Geograph website and which was entitled the Interactive Coverage Map and an estimated c 404m col height, based on interpolation of 10m contouring between 400m - 410m.
Shovel Down (SX 658 857) – 400m Sub-Four deletion (11th reclassification)
The criteria for the list that this deletion applies to are:
The name the hill is listed by is Shovel Down and it is adjoined to the High Willhays group of hills, which are situated in Dartmoor in the south-west of England, and it is positioned with minor roads to its north-east and south-east and the B3212 road farther to its south-east and the A382 road farther to its north-east, and has the town of Chagford to the east north-east.
The 435m summit height was taken from what was presumed to be a 1,427ft (434.954m) height that appeared on the Ordnance Survey 1:10,560 map. However, the last figure of the imperial height was blurred and a ? was added to the hand written notes accompanying the listing of this hill. The Ordnance Survey 1:10,000 series of maps has this figure as 1,421ft (433.126m).
However, it was not until LIDAR became available that the details for this hill could be accurately re-assessed. The LIDAR (Light Detection & Ranging) technique produced highly accurate height data that is now freely available for much of England and Wales.
High Nook (NY 120 189) – 400m Sub-Four deletion (9th reclassification)
Myrddyn Phillips and Aled Williams (May 2018)
Mapping Mountains - Hill Reclassifications - The Fours
Myrddyn Phillips and Aled Williams (May 2018)
Pt. 431.1m (NY 308 042)
Accompanying the main list of The Fours - The 400m Hills of England are three categories of sub hills, with this hill being deleted from the 400m Sub-Fours. The criteria for which are all English hills at and above 400m and below 500m in height that have 20m and more and below 30m of drop.
As the authors do not know an individual name for this hill either from local and/or historical research it is listed under the point (Pt. 431.1m) notation and it is situated in the Central and Western Fells of the Lake District and is placed in Region 34, Section 34B, with its Cardinal Hill being Scafell Pike (NY 215 072). The hill is positioned between Great Langdale to its north and Little Langdale to its south and has the village of Elterwater towards its east north-east.
Mapping Mountains - Hill Reclassifications - The Fours
Black Hill (SD 865 662) – Four reclassified to 400m Sub-Four (6th reclassification)
The criteria for the list that this reclassification applies to are:
The name the hill is listed by is Black Hill and it is adjoined to the Pen Ghent group of hills, which are situated in the central Pennines, and it is positioned with Malham Tarn to its east and has the small town of Settle towards its west south-west.
However, it was not until LIDAR became available that the details for this hill could be accurately re-assessed. The LIDAR (Light Detection & Ranging) technique produced highly accurate height data that is now freely available for much of England and Wales.
Accompanying the main list are three categories of sub hills, with this hill being reclassified from the 400m Sub-Four category. The criteria for which are all English hills at and above 400m and below 500m in height that have 20m and more and below 30m of drop.
Prior to LIDAR analysis this hill was listed with 28m of drop based on the 419m summit spot height that appears on the Ordnance Survey 1:50,000 Landranger map and the 391m col spot height that appears on the Ordnance Survey 1:25,000 Explorer map.
The summit of the hill is a part of designated open access land and can be approached via bridleways from the north and the south that lead up tracks that head on to open hillside where public footpaths then lead over the open access land.
Myrddyn Phillips and Aled Williams (May 2018)
Mapping Mountains - Hill Reclassifications - The Fours
Reilth Top (SO 284 881) - Four reclassified to 400m Sub-Four (3rd reclassification)
Survey post for Reilth Top
The criteria for the list that this reclassification applies to are:
The name the hill is listed by is Reilth Top, and it is adjoined to the Cilfaesty group of hills, which are situated in the county of Shropshire close to the Welsh border, and it is positioned encircled by minor roads with the B4385 road to its north and the A488 road to its south-east, and has the town of Bishops Castle towards the east.
Its reclassification is due to a Trimble GeoXH 6000 survey, resulting in a 404.6m summit height and a 375.6m col height, with these values giving this hill 29.0m of drop.
Therefore, the confirmation of the reclassification of this hill to 400m Sub-Four status is due to a Trimble GeoXH 6000 summit survey and subsequent LIDAR col analysis, resulting in a 404.6m summit height and a 375.4m col height, with these values giving this hill 29.2m of drop, which is sufficient for it to be classified as a Four.
The Cold Piece (SO 338 996) - Four reclassified to 390m Sub-Four (2nd reclassification)
Survey post for The Cold Piece
Significant Name Changes post for The Cold Piece
There has been a reclassification to a hill that is listed in the The Fours – The 400m Hills of England, with the summit height, col height and their locations, the drop and status of the hill derived from a Trimble GeoXH 6000 survey and subsequent LIDAR analysis conducted by Myrddyn Phillips.
The name the hill is now listed by is The Cold Piece and this was derived from local enquiry, and it is adjoined to the Stiperstones group of hills, which are situated in the county of Shropshire close to the Welsh border, and it is positioned with minor roads to its north-east and south, and the A488 road to its north-west, and has the small community of Snailbeach towards the north-east.
When the listing that is now known as The Fours - The 400m Hills of England was originally compiled this hill was listed as a Four with an estimated c 400m summit height, based on the uppermost ring contour that appears on the contemporary Ordnance Survey 1:50,000 Landranger and 1:25,000 Explorer map, and this is the height given the summit when the 1st edition of The Fours was published by Europeaklist in December 2013, with an accompanying note stating:
However, it was not until the hill was surveyed with the Trimble GeoXH 6000 and subsequent LIDAR analysis that the details for this hill could be accurately re-assessed. The LIDAR (Light Detection & Ranging) technique produced highly accurate height data that is now freely available for much of England and Wales.
West Nab (SK 266 939) - 390m Double Sub-Four addition (1st reclassification)
There has been an addition to the 390m Double Sub-Four category which has recently been discovered by Ed Gradwell, with the details forwarded by his brother; George. The hill is West Nab (SK 266 939) and it is situated in the Peak District.
Myrddyn Phillips and Aled Williams (February 2014)
Mapping Mountains - Hill Reclassifications - The Fours
Low Fell (NY 135 222) – 400m Sub-Four addition (35th reclassification)
Significant Height Revisions post for Low Fell
There has been an addition to the listing of the The Fours – The 400m Hills of England, with the summit height, col height and their locations, the drop and status of the hill derived by Joe Nuttall who produced a summit analysis programme using LIDAR, and then by LIDAR analysis conducted by Myrddyn Phillips.
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| LIDAR image of Low Fell (NY 135 222) |
The criteria for the list that this addition applies to are:
The Fours – The 400m Hills of England. English hills at or above 400m and below 500m in height that have 30m minimum drop, accompanying the main listing of The Fours are three categories of sub hills, with this hill being included in the 400m Sub-Four category, the criteria for which are all English hills at or above 400m and below 500m in height that have 20m or more and below 30m of drop. The list is co-authored by Myrddyn Phillips and Aled Williams and the 2nd edition of the booklet containing this list was published by Mapping Mountains Publications on the 24th April 2018.
 |
| The Fours - The 400m Hills of England by Myrddyn Phillips and Aled Williams |
The name the hill is listed by is Low Fell, and it is adjoined to the Great Gable group of hills, which are situated in the Lake District (Region 34, Section 34B: The Central and Western Fells), and it is positioned with the A5086 road to its north-west, a minor road to its south and the B5289 road to its north-east, and has the small community of Brackenthwaite towards the east.
When the 2nd edition of the The Fours – The 400m Hills of England was published by Mapping Mountains Publications in April 2018, this hill was not included in the accompanying sub list, as it was considered not to meet the criteria used for this sub category.
However, during the updating of this list for the 2nd edition this hill was noted and listed with an estimated c 13m of drop, based on the 412m summit spot height that appears on the Ordnance Survey 1:25,000 Explorer map and an estimated c 399m col height based on interpolation of 10m contouring between 390m – 400m.
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| Extract from the Ordnance Survey 1:25,000 Explorer map |
However, it was not until LIDAR became available that the details for this hill could be accurately re-assessed. The LIDAR (Light Detection & Ranging) technique produced highly accurate height data that is now freely available for much of England and Wales.
Therefore, the addition of this hill to 400m Sub-Four status is due to LIDAR analysis, resulting in a 417.1m summit height and a 395.5m col height, with these values giving this hill 21.6m of drop, which is sufficient for 400m Sub-Four status.
The full details for the hill are:
Group: Great Gable
Name: Low Fell
OS 1:50,000 map: 89
Summit Height: 417.1m (LIDAR)
Summit Grid Reference: NY 13598 22260 (LIDAR)
Col Height: 395.5m (LIDAR)
Col Grid Reference: NY 13659 22371 (LIDAR)
Drop: 21.6m (LIDAR)
For the additions, deletions and reclassifications to The Fours – The 400m Hills of England reported on Mapping Mountains since the December 2013 publication of the 1st edition of this list by Europeaklist please consult the following Change Registers:
The Fours – 390m Double Sub-Four
Our thanks to Ronnie Bowron for bringing the details of this hill to our attention
Myrddyn Phillips and Aled Williams (August 2021)
Mapping Mountains - Hill Reclassifications - The Fours
Andrew’s Edge (SJ 984 747) – 400m Sub-Four deletion (34th reclassification)
There has been a deletion to the listing of the The Fours – The 400m Hills of England, with the summit height, col height and their locations, the drop and status of the hill derived from detail on contemporary maps produced from Ordnance Survey data, and subsequently confirmed from LIDAR analysis conducted by Myrddyn Phillips.
%20-%20LIDAR%20hill%201.jpg) |
| LIDAR image of Andrew's Edge (SJ 984 747) |
This was initiated by Joe Nuttall who produced a summit analysis programme that used LIDAR with an alternative height map (DEM) allowing identification of summits and cols and thereby drops. The resulting spreadsheet that Joe produced contains over 29600 hills.
This spreadsheet is being evaluated by a number of people, including Ronnie Bowron, who passed the details of this hill for evaluation.
The criteria for the list that this deletion applies to are:
The Fours – The 400m Hills of England. English hills at or above 400m and below 500m in height that have 30m minimum drop, accompanying the main list are three categories of sub hills, with this hill being deleted from the 400m Sub-Four category, the criteria for which are all English hills at or above 400m and below 500m in height that have 20m or more and below 30m of drop. The list is co-authored by Myrddyn Phillips and Aled Williams and the 2nd edition of the booklet containing this list was published by Mapping Mountains Publications on the 24th April 2018.
 |
| The Fours - The 400m Hills of England by Myrddyn Phillips and Aled Williams |
The name the hill was listed by is Andrew’s Edge, and it is adjoined to the Shining Tor group of hills, which are situated in the Peak District in England, and it is positioned with the A5004 road to its north-east, the B5470 road to its north-west and the A537 road to its south, and has the towns of Macclesfield towards the west and Buxton towards the east.
When the 2nd edition of the The Fours – The 400m Hills of England was published by Mapping Mountains Publications in April 2018, this hill was included as a 400m Sub-Four and listed with 21m of drop, based on the 484m summit spot height that appeared on the Ordnance Survey Vector Map Local hosted on the Geograph website and which was entitled the Interactive Coverage Map, and the 463m col spot height that appears on the Harvey 1:40,000 British Mountain Maps series to the Dark Peak.
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| Extract from the Ordnance Survey 1:25,000 Explorer map |
The details for this hill have now been re-assessed against other digitally updated mapping. One of the mapping resources now available online is the WalkLakes website which hosts an interactive Ordnance Survey map originated from the Ordnance Survey Open Data programme. This map has many spot heights not on other publicly available Ordnance Survey maps and for this hill a 485m spot height is given on the area of its summit.
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| Extract from the WalkLakes website |
Another resource available online is the interactive mapping originated from Ordnance Survey data hosted on the Magic Maps website. This mapping also shows a 485m spot height on the summit area of this hill.
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| Extract from the Magic Maps website |
The details for this hill were also re-assessed against the mapping on the OS Maps website. This is the replacement for OS Get-a-map and until recent times had contours at 5m intervals which were proving consistently more accurate compared to the 5m contours that sometimes appear on the Ordnance Survey 1:25,000 Explorer map and used to appear on the online Vector Map Local. This resulted in its col height being estimated as c 466m based on interpolation of 5m contouring between 465m – 470m, and this latter map and the interpolated col height is being favoured over the spot height and its position given on the Harvey map.
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| Extract from the OS Maps website |
However, it was not until LIDAR became available that the details for this hill could be accurately re-assessed. The LIDAR (Light Detection & Ranging) technique produced highly accurate height data that is now freely available for much of England and Wales.
Therefore, the deletion of this hill from 400m Sub-Four status is due to re-assessment of contemporary mapping produced from Ordnance Survey data, with subsequent confirmation from LIDAR analysis, resulting in a 484.8m summit height and a 465.0m col height, with these values giving this hill 19.7m of drop, which is insufficient for 400m Sub-Four status.
The full details for the hill are:
Group: Shining Tor
Name: Andrew’s Edge
OS 1:50,000 map: 118
Summit Height: 484.8m (LIDAR)
Summit Grid Reference: SJ 98438 74706 (LIDAR)
Col Height: 465.0m (LIDAR)
Col Grid Reference: SJ 99028 74023 (LIDAR)
Drop: 19.7m (LIDAR)
For the additions, deletions and reclassifications to The Fours - The 400m Hills of England reported on Mapping Mountains since the December 2013 publication of the list by Europeaklist please consult the following Change Registers:
Our thanks to Ronnie Bowron for bringing the details of this hill to our attention
Myrddyn Phillips and Aled Williams (November 2020)
Mapping Mountains - Hill Reclassifications - The Fours
Great Nodden (SX 539 874) – 400m Sub-Four addition (33rd reclassification)
There has been an addition to the listing of the The Fours – The 400m Hills of England, with the summit height, col height and their locations, the drop and status of the hill derived from detail on contemporary maps produced from Ordnance Survey data and initiated by Joe Nuttall who produced a surface analysis programme using LIDAR with an alternative height map (DEM) allowing identification of summits and cols and thereby drops and confirmed by subsequent LIDAR analysis conducted by Myrddyn Phillips.
%20-%20LIDAR%20hill%203.jpg) |
| LIDAR image of Great Nodden (SX 539 874) |
Joe's workings area available as a spreadsheet comprising many thousands of hills and this is being evaluated by a number of people, including Ronnie Bowron, who passed the details of this hill to us for evaluation.
The criteria for the list that this addition applies to are:
The Fours – The 400m Hills of England. English hills at or above 400m and below 500m in height that have 30m minimum drop, accompanying the main list are three categories of sub hills, with this hill being added to the 400m Sub-Four category, the criteria for which are all English hills at or above 400m and below 500m in height that have 20m or more and below 30m of drop. The list is co-authored by Myrddyn Phillips and Aled Williams and the 2nd edition of the booklet containing this list was published by Mapping Mountains Publications on the 24th April 2018.
 |
| The Fours - The 400m Hills of England by Myrddyn Phillips and Aled Williams |
The name the hill is listed by is Great Nodden, and it is adjoined to the High Willhays group of hills, which are situated in Dartmoor in south-west England, and it is positioned with the A386 road to its west, and has the town of Okehampton towards the north-east.
When the 2nd edition of the The Fours – The 400m Hills of England was published by Mapping Mountains Publications in April 2018, this hill was not included as it was listed with 18m of drop, based on the 437m summit spot height that appears on the Ordnance Survey 1:50,000 Landranger and 1:25,000 Explorer maps and the 419m col spot height that used to appear on the Ordnance Survey Vector Map Local hosted on the Geograph website and which was entitled the Interactive Coverage Map.
%20-%201%2025000.jpg) |
| Extract from the Ordnance Survey 1:25,000 Explorer map |
These details have now been re-assessed against the mapping on the OS Maps website. This is the replacement for OS Get-a-map and until recent times had contours at 5m intervals which were proving consistently more accurate compared to the 5m contours that sometimes appear on the Ordnance Survey 1:25,000 Explorer map and used to appear on the online Vector Map Local. This mapping is digitally updated and the position of the 419m spot height has been checked against the col contours which are between 410m – 415m, and found to be on an upslope, with the height of the col estimated to be c 413m.
However, it was not until LIDAR became available that the details for this hill could be accurately re-assessed. The LIDAR (Light Detection & Ranging) technique produced highly accurate height data that is now freely available for much of England and Wales.
Therefore, the addition of this hill to 400m Sub-Four status is due to re-assessment of detail on contemporary mapping produced from Ordnance Survey data and confirmed by subsequent LIDAR analysis, resulting in a 436.4m summit height and a 414.1m col height, with these values giving this hill 22.3m of drop, which is sufficient for 400m Sub-Four status.
The full details for the hill are:
Group: High Willhays
Name: Great Nodden
OS 1:50,000 map: 191
Summit Height: 436.4m (LIDAR)
Summit Grid Reference: SX 53918 87419 (LIDAR)
Col Height: 414.1m (LIDAR)
Col Grid Reference: SX 54229 87879 (LIDAR)
Drop: 22.3m (LIDAR)
For the additions, deletions and reclassifications to The Fours - The 400m Hills of England reported on Mapping Mountains since the December 2013 publication of the 1st edition of this list by Europeaklist please consult the following Change Registers:
Our thanks to Joe Nuttall and Ronnie Bowron for bringing the details of this hill to our attention.
Myrddyn Phillips and Aled Williams (October 2020)
Mapping Mountains - Hill Reclassifications - The Fours
Standing Stone Hill (SD 950 303) – Double Sub-Four addition (32nd reclassification)
There has been an addition to the listing of the The Fours – The 400m Hills of England, with the summit height, col height and their locations, the drop and status of the hill derived from detail on contemporary maps produced from Ordnance Survey data.
This was initiated by Joe Nuttall who produced a summit analysis programme that used LIDAR with an alternative height map (DEM) allowing identification of summits and cols and thereby drops. The resulting spreadsheet that Joe produced contains over 29600 hills.
This spreadsheet is being evaluated by a number of people, including Ronnie Bowron, who passed the details of this hill for evaluation.
The criteria for the list that this addition applies to are:
The Fours – The 400m Hills of England. English hills at or above 400m and below 500m in height that have 30m minimum drop, accompanying the main listing of The Fours are three categories of sub hills, with this hill being added to the Double Sub-Four category, the criteria for which are all English hills at or above 390m and below 400m in height that have 20m or more and below 30m of drop. The list is co-authored by Myrddyn Phillips and Aled Williams and the 2nd edition of the booklet containing this list was published by Mapping Mountains Publications on the 24th April 2018.
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| The Fours - The 400m Hills of England by Myrddyn Phillips and Aled Williams |
The name the hill is listed by is Standing Stone Hill, and it is adjoined to the Pendle group of hills, which are situated in the Pennines of northern England (Region 36: The Southern Pennines), and it is positioned with minor roads to its north-east and south, and farther afield it has the A646 road to its south-west and the A6033 road to its east, and has the town of Hebden Bridge towards the south-east.
When the 2nd edition of the The Fours – The 400m Hills of England was published by Mapping Mountains Publications in April 2018, this hill was not included but was provisionally listed with 20m of drop, based on the 398m summit spot height adjoined to a triangulation pillar and the 378m col spot height that appear on the Ordnance Survey 1:25,000 Explorer map.
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| Extract from the Ordnance Survey 1:25,000 Explorer map |
These details have now been re-assessed against the mapping on the OS Maps website. This is the replacement for OS Get-a-map and has contours at 5m intervals which are proving consistently more accurate compared to the 5m contours that sometimes appear on the Ordnance Survey 1:25,000 Explorer map and used to appear on the online Vector Map Local. This mapping is digitally updated and the position of the 378m spot height has been checked against the col contours which are between 375m – 380m, resulting in an estimated c 377m col height.
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| Extract from the OS Maps website |
Therefore, the addition of Standing Stone Hill to Double Sub-Four status is due to re-assessment of contemporary mapping produced from Ordnance Survey data and an on-site Abney level survey, resulting in an estimated c 399m summit height and a c 377m col height, with these values giving this hill an estimated c 22m of drop, which is sufficient for Double Sub-Four status.
The full details for the hill are:
Group: Pendle
Name: Standing Stone Hill
OS 1:50,000 map: 103
Summit Height: c 399m (relative to triangulation pillar)
Summit Grid Reference: SD 95042 30320 (hand-held GPS)
Col Height: c 377m (interpolation)
Col Grid Reference: SD 94516 30295 (interpolation)
Drop: c 22m (relative to triangulation pillar summit and interpolated col)
For the additions, deletions and reclassifications to The Fours reported on Mapping Mountains since the December 2013 publication of the list by Europeaklist please consult the following Change Registers:
Our thanks to Joe Nuttall and Ronnie Bowron for bringing the details of this hill to our attention.
Mapping Mountains - Hill Reclassifications - The Fours
THIS HILL HAS SUBSEQUENTLY BEEN DELETED FROM 400m SUB-FOUR STATUS
Burners Hills (NY 942 172) – 400m Sub-Four addition (31st reclassification)
There has been an addition to the listing of the The Fours – The 400m Hills of England, with the summit height, col height and their locations, the drop and status of the hill derived from detail on contemporary maps produced from Ordnance Survey data.
This was initiated by Joe Nuttall who produced a summit analysis programme that used LIDAR with an alternative height map (DEM) allowing identification of summits and cols and thereby drops. The resulting spreadsheet that Joe produced contains over 29600 hills.
This spreadsheet is being evaluated by a number of people, including Ronnie Bowron, who passed the details of this hill for evaluation.
The criteria for the list that this addition applies to are:
The Fours – The 400m Hills of England. English hills at or above 400m and below 500m in height that have 30m minimum drop, accompanying the main listing of The Fours are three categories of sub hills, with this hill being added to the 400m Sub-Four category, the criteria for which are all English hills at or above 400m and below 500m in height that have 20m or more and below 30m of drop. The list is co-authored by Myrddyn Phillips and Aled Williams and the 2nd edition of the booklet containing this list was published by Mapping Mountains Publications on the 24th April 2018.
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| The Fours - The 400m Hills of England by Myrddyn Phillips and Aled Williams |
The name the hill is listed by is Burners Hills, and it is adjoined to the Cross Fell group of hills, which are situated in the Pennines of northern England (Region 35: The Northern and Central Pennines, Section 35A: The Northern Pennines), and it is positioned with the B6276 road to its north-west, the A66 road to its south and the B6277 road to its east, and has the town of Barnard Castle towards the east.
When the 2nd edition of the The Fours – The 400m Hills of England was published by Mapping Mountains Publications in April 2018, this hill was not classified but was listed with an estimated c 17m of drop, based on the 404m summit spot height that appears on the Ordnance Survey 1:25,000 Explorer map and an estimated c 387 col height based on interpolation of 5m contouring between 385m – 390m that appeared on the OS Maps website.
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| Extract from the Ordnance Survey 1:25,000 Explorer map |
The mapping on the OS Maps website is the replacement for OS Get-a-map and has contours at 5m intervals which are proving consistently more accurate compared to the 5m contours that sometimes appear on Ordnance Survey 1:25,000 Explorer maps and used to appear on the online Vector Map Local. This mapping is digitally updated and has altered since the details for this hill were re-evaluated for the 2nd edition of the booklet published in April 2018, as the col contouring is now between 380m – 385m. This is not a one off, as a number of examples have been noted where the contours on this mapping have subsequently changed since first being evaluated. This re-assessment resulted in an estimated c 383m col height.
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| Extract from the OS Maps website |
Therefore, the addition of Burners Hills to 400m Sub-Four status is due to re-assessment of contemporary mapping produced from Ordnance Survey data, resulting in a 404m summit height and a c 383m col height, with these values giving this hill c 21m of drop, which is sufficient for 400m Sub-Four status.
The full details for the hill are:
Group: Cross Fell
Name: Burners Hills
OS 1:50,000 map: 91, 92
Summit Height: 404m (spot height)
Summit Grid Reference: NY 94226 17210 (spot height)
Col Height: c 383m (interpolation)
Col Grid Reference: NY 94215 16945 (interpolation)
Drop: c 21m (spot height summit and interpolated col)
For the additions, deletions and reclassifications to The Fours reported on Mapping Mountains since the December 2013 publication of the list by Europeaklist please consult the following Change Registers:
Our thanks to Joe Nuttall and Ronnie Bowron for bringing the details of this hill to our attention.
Mapping Mountains - Hill Reclassifications - The Fours
Green Side (NT 906 076) – 390m Sub-Four addition (30th reclassification)
There has been an addition to the listing of the The Fours – The 400m Hills of England, with the summit height, col height and their locations, the drop and status of the hill confirmed by LIDAR analysis.
This was initiated by Joe Nuttall who produced a summit analysis programme that used LIDAR with an alternative height map (DEM) allowing identification of summits and cols and thereby drops. The resulting spreadsheet that Joe produced contains over 29600 hills.
This spreadsheet is being evaluated by DoBIH Editors and others, and for this particular hill it was Jim Bloomer who initially assessed its height and that of its adjacent peak via LIDAR analysis.
Myrddyn Phillips then evaluated this hill’s details via LIDAR analysis and confirmed its height and hence its addition as a 390m Sub-Four.
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| LIDAR image of Green Side (NT 906 076) |
The criteria for the list that this addition applies to are:
The Fours – The 400m Hills of England. English hills at or above 400m and below 500m in height that have 30m minimum drop, accompanying the main listing of The Fours are three categories of sub hills, with this hill being added to the 390m Sub-Four category, the criteria for which are all English hills at or above 390m and below 400m in height that have 30m minimum drop. The list is co-authored by Myrddyn Phillips and Aled Williams and the 2nd edition of the booklet containing this list was published by Mapping Mountains Publications on the 24th April 2018.
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| The Fours - The 400m Hills of England by Myrddyn Phillips and Aled Williams |
The name the hill is listed by is Green Side, and it is adjoined to The Cheviot group of hills, which are situated in the north-eastern part of England (Region 33 Scottish Border to the River Tyne), and it is positioned with a minor road to its south-east and farther afield has the A68 road to its south-west, the B6341 road to its south-east and the A697 road to its east, and has the town of Rothbury towards the east south-east.
When the 2nd edition of the The Fours – The 400m Hills of England was published by Mapping Mountains Publications in April 2018, this hill was not classified but was listed with an estimated c 17m of drop, based on the 389m summit height adjoined to a triangulation pillar that appears on the Ordnance Survey 1:50,000 Landranger and 1:25,000 Explorer map, and an estimated c 372 col height based on interpolation of 5m contouring between 370m – 375m that appear on the OS Maps website.
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| Extract from the Ordnance Survey 1:25,000 Explorer map |
Approximately 1km to the north-east of the triangulation pillar atop Green Side is the hill named Lord’s Seat. The flush bracket adjoined to this trig pillar is given as 389.534m and positioned at NT 90299 07313 in the OS Trig Database, with its map height given as 389m. As the map height of Lord’s Seat is 392m it was this hill that was classified as the 390m Sub-Four with c 53m of drop.
However, it was not until LIDAR became available that the details for these two hills could be accurately re-assessed. The LIDAR (Light Detection & Ranging) technique produced highly accurate height data that is now freely available for much of England and Wales.
LIDAR results for each summit:
Lord’s Seat: 392.2m at NT 91281 07968 and NT 91282 07966
Green Side: 395.5m at NT 90695 07602
As Green Side is higher than Lord’s Seat the respective cols are swapped and Green Side becomes the 390m Sub-Four. However, the subsequent drop for Lord’s Seat is sufficient for it to be classified as a 390m Double Sub-Four.
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| LIDAR image of Green Side and Lord's Seat |
Therefore, the addition of Green Side to 390m Sub-Four status is due to LIDAR analysis, resulting in a 395.5m summit height and a 339.5m col height, with these values giving this hill 56.0m of drop, which is sufficient for 390m Sub-Four status.
The full details for the hill are:
Group: The Cheviot
Name: Green Side
OS 1:50,000 map: 80
Summit Height: 395.5m (LIDAR)
Summit Grid Reference: NT 90695 07602 (LIDAR)
Col Height: 339.5m (LIDAR)
Col Grid Reference: NT 90531 07919 (LIDAR)
Drop: 56.0m (LIDAR)
For the additions, deletions and reclassifications to The Fours reported on Mapping Mountains since the December 2013 publication of the list by Europeaklist please consult the following Change Registers:
Our thanks to Joe Nuttall and Jim Bloomer for bringing the details of this hill to our attention
Myrddyn Phillips and Aled Williams (August 2020)
Lord’s Seat (NT 912 079) – 390m Sub-Four reclassified to 390m Double Sub-Four (29th reclassification)
There has been a reclassification to the listing of the The Fours – The 400m Hills of England, with the summit height, col height and their locations, the drop and status of the hill confirmed by LIDAR analysis.
This was initiated by Joe Nuttall who produced a summit analysis programme that used LIDAR with an alternative height map (DEM) allowing identification of summits and cols and thereby drops. The resulting spreadsheet that Joe produced contains over 29600 hills.
This spreadsheet is being evaluated by DoBIH Editors and others, and for this particular hill it was Jim Bloomer who initially assessed its height and that of its adjacent peak via LIDAR analysis.
Myrddyn Phillips then evaluated this hill’s details via LIDAR analysis and confirmed its drop value and hence its reclassification.
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| LIDAR image of Lord's Seat (NT 912 079) |
The criteria for the list that this reclassification applies to are:
The Fours – The 400m Hills of England. English hills at or above 400m and below 500m in height that have 30m minimum drop, accompanying the main listing of The Fours are three categories of sub hills, with this hill being reclassified from the 390m Sub-Four category to the 390m Double Sub-Four category. The criteria for 390m Sub-Four status being all English hills at or above 390m and below 400m in height that have 30m minimum drop and the criteria for 390m Double Sub-Four status being all English hills at or above 390m and below 400m in height that have 20m or more and below 30m of drop. The list is co-authored by Myrddyn Phillips and Aled Williams and the 2nd edition of the booklet containing this list was published by Mapping Mountains Publications on the 24th April 2018.
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| The Fours - The 400m Hills of England by Myrddyn Phillips and Aled Williams |
The name the hill is listed by is Lord’s Seat, and it is adjoined to The Cheviot group of hills, which are situated in the north-eastern part of England (Region 33 Scottish Border to the River Tyne), and it is positioned with a minor road to its south-east and farther afield has the A68 road to its south-west, the B6341 road to its south-east and the A697 road to its east, and has the town of Rothbury towards the east south-east.
When the 2nd edition of the The Fours – The 400m Hills of England was published by Mapping Mountains Publications in April 2018, this hill was listed as a 390m Sub-Four with an estimated c 53m of drop, based on the 392m summit spot height and an estimated c 339m col height based on interpolation of 10m contouring between 330m – 340m that appear on the Ordnance Survey 1:50,000 Landranger and 1:25,000 Explorer map.
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| Extract from the Ordnance Survey 1:25,000 Explorer map |
Approximately 1km to the south-west of the summit of Lord’s Seat is the triangulation pillar on the hill named Green Side. The flush bracket adjoined to this trig pillar is given as 389.534m and positioned at NT 90299 07313 in the OS Trig Database, with its map height given as 389m. As the map height of Green Side is lower than Lord’s Seat the former was unclassified with an estimated c 17m of drop and Lord’s Seat listed as the 390m Sub-Four.
However, it was not until LIDAR became available that the details for these two hills could be accurately re-assessed. The LIDAR (Light Detection & Ranging) technique produced highly accurate height data that is now freely available for much of England and Wales.
LIDAR results for each summit:
Lord’s Seat: 392.2m at NT 91281 07968 and NT 91282 07966
Green Side: 395.5m at NT 90695 07602
As Green Side is higher than Lord’s Seat the respective cols are swapped and Green Side becomes the 390m Sub-Four. However, the subsequent drop for Lord’s Seat is sufficient for it to be classified as a 390m Double Sub-Four.
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| LIDAR image of Lord's Seat and Green Side |
Therefore, the reclassification of Lord’s Seat from 390m Sub-Four status is due to LIDAR analysis, resulting in a 392.2m summit height and a 370.9m col height, with these values giving this hill 21.3m of drop, which is insufficient for 390m Double Sub-Four status.
The full details for the hill are:
Group: The Cheviot
Name: Lord’s Seat
OS 1:50,000 map: 80
Summit Height: 392.2m (LIDAR)
Summit Grid Reference: NT 91281 07968 and NT 91282 07966 (LIDAR)
Col Height: 370.9m (LIDAR)
Col Grid Reference: NT 90985 07852 (LIDAR)
Drop: 21.3m (LIDAR)
For the additions, deletions and reclassifications to The Fours reported on Mapping Mountains since the December 2013 publication of the list by Europeaklist please consult the following Change Registers:
Our thanks to Joe Nuttall and Jim Bloomer for bringing the details of this hill to our attention.
Mapping Mountains - Hill Reclassifications - The Fours
Horn Crag (NY 318 099) – 400m Sub-Four addition (28th reclassification)
There has been an addition to the listing of The Fours - The 400m Hills of England due to LIDAR analysis conducted by Myrddyn Phillips. This list takes in all English 400m hills at or above 400m and below 500m in height that have 30m minimum drop. The list is co-authored by Myrddyn Phillips and Aled Williams and the 2nd edition of the booklet containing this list was published by Mapping Mountains Publications on the 24th April 2018.
%20-%20LIDAR%20hill%202.jpg) |
| LIDAR image of Horn Crag (NY 318 099) |
Accompanying the main list of The Fours - The 400m Hills of England are three categories of sub hills, with this hill being added to the 400m Sub-Fours. The criteria for which are all English hills at or above 400m and below 500m in height that have 20m or more and below 30m of drop.
Prior to LIDAR analysis this hill was listed with an estimated c 17m of drop based on an estimated c 422m summit height and an estimated c 405m col height, with both heights based on interpolation of 10m contouring that appears on the Ordnance Survey 1:50,000 Landranger and 1:25,000 Explorer map, with the col contours between 400m – 405m on OS Maps, which is the recent replacement for OS Get-a-map.
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| Extract from the Ordnance Survey 1:25,000 Explorer map |
The name the hill is listed by is Horn Crag and it is situated in the Lake District which constitutes Region 34, and is positioned in the Central and Western Fells which are a part of Section 34B, with its Cardinal Hill being Scafell Pike (NY 215 072). The hill is positioned between Calf Crag towards the west and Helm Crag towards the south-east and has the A591 road and the village of Grasmere towards the south-east.
As the summit of the hill is a part of designated open access land it can in theory be approached from a number of directions, with access on its ridge from Helm Crag being popular, and access on to this same ridge from the opposing steam valleys of Green Burn to the north-east and Far Easedale Gill from the south-west also feasible.
The addition of Horn Crag to 400m Sub-Four status is due to LIDAR analysis conducted by Myrddyn Phillips. The LIDAR (Light Detection & Ranging) technique produced highly accurate height data that is now freely available for much of England and Wales.
LIDAR analysis gives the hill the following details:
Horn Crag
Summit Height: 422.0m
Summit Grid Reference: NY 31853 09924
Col Height: 400.5m
Col Grid Reference: NY 31738 09993
Drop: 21.6m
Therefore, the addition of this hill to 400m Sub-Four status is due to LIDAR analysis, resulting in a 422.0m summit height and a 400.5m col height, with these values giving this hill 21.6m of drop, which is sufficient for it to be classified as a 400m Sub-Four.
The full details for the hill are:
Cardinal Hill: Scafell Pike
Name: Horn Crag
OS 1:50,000 map: 90
Summit Height: 422.0m (LIDAR)
Summit Grid Reference: NY 31853 09924 (LIDAR)
Col Height: 400.5m (LIDAR)
Col Grid Reference: NY 31738 09993 (LIDAR)
Drop: 21.6m (LIDAR)
For the additions, deletions and reclassifications to The Fours reported on Mapping Mountains since the December 2013 publication of the list by Europeaklist please consult the following Change Registers:
Myrddyn Phillips and Aled Williams (March 2019)
Mapping Mountains - Hill Reclassifications - The Fours
Anthony Hill (SK 046 706) – 400m Sub-Four addition (27th reclassification)
There has been an addition to the listing of The Fours - The 400m Hills of England, with the summit height, col height and their locations, the drop and status of the hill derived from detail on contemporary maps produced from Ordnance Survey data and subsequently confirmed by LIDAR analysis conducted by Myrddyn Phillips.
%20-%20LIDAR%20hill%203.jpg) |
| LIDAR image of Anthony Hill (SK 046 706) |
The criteria for the list that this addition applies to are:
The Fours – The 400m Hills of England. English hills at or above 400m and below 500m in height that have 30m minimum drop, accompanying the main list are three categories of sub hills, with this hill being added to the 400m Sub-Four category, the criteria for which are all English hills at or above 400m and below 500m in height that have 20m or more and below 30m of drop. The list is co-authored by Myrddyn Phillips and Aled Williams and the 2nd edition of the booklet containing this list was published by Mapping Mountains Publications on the 24th April 2018.
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| The Fours - The 400m Hills of England by Myrddyn Phillips and Aled Williams |
The name the hill is listed by is Anthony Hill, and it is adjoined to the Axe Edge group of hills, which are situated in the Peak District, and it is positioned with a minor road to its north and south, and the A53 road to its west, and has the town of Buxton to the north north-east.
When the 1st edition of the The Fours was published by Europeaklist in December 2013, this hill was not included in the 400m Sub-Four caregory, but was listed with an estimated c 18m of drop, based on the 414m summit spot height that appears on the Ordnance Survey 1:25,000 Explorer map and an estimated c 396m col height based on 5m contouring between 395m – 400m that also appear on the Ordnance Survey 1:25,000 Explorer map.
%20-%201%2025000.jpg) |
| Extract from the Ordnance Survey 1:25,000 Explorer map |
One of the resources recently available online is the mapping on the OS Maps website and the details for this hill were subsequently re-assessed against this mapping. This is the replacement for OS Get-a-map and until recent times had contours at 5m intervals which were proving consistently more accurate compared to the 5m contours that sometimes appear on the Ordnance Survey 1:25,000 Explorer map and used to appear on the online Vector Map Local. This mapping had col contouring between 385m – 390m, with interpolation placing the height of the col as an estimated c 389m.
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| Extract from the OS Maps website |
However, it was not until LIDAR became available that the details for this hill could be accurately re-assessed. The LIDAR (Light Detection & Ranging) technique produced highly accurate height data that is now freely available for much of England and Wales.
Therefore, the confirmation of the addition of this hill to 400m Sub-Four status is due to LIDAR analysis, resulting in a 413.3m summit height and a 385.9m col height, with these values giving this hill 27.4m of drop, which is sufficient for it to be classified as a 400m Sub-Four.
The full details for the hill are:
Group: Axe Edge
Name: Anthony Hill
OS 1:50,000 map: 119
Summit Height: 413.3m (LIDAR)
Summit Grid Reference: SK 04646 70659 (LIDAR)
Col Height: 385.9m (LIDAR)
Col Grid Reference: SK 04492 70608 (LIDAR)
Drop: 27.4m (LIDAR)
For the additions, deletions and reclassifications to The Fours - The 400m Hills of England reported on Mapping Mountains since the December 2013 publication of the list by Europeaklist please consult the following Change Registers:
Myrddyn Phillips and Aled Williams (October 2018)
Mapping Mountains - Hill Reclassifications - The Fours
Pt. 404.4m (SK 073 698) – 400m Sub-Four deletion (26th reclassification)
There has been a deletion to the listing of the The Fours – The 400m Hills of England, with the summit height, col height and their locations, the drop and status of the hill derived from detail on contemporary maps produced from Ordnance Survey data and subsequently confirmed by LIDAR analysis conducted by Myrddyn Phillips.
%20-%20LIDAR%20hill%201.jpg) |
| LIDAR image of Pt. 404.4m (SK 073 698) |
The criteria for the list that this deletion applies to are:
The Fours – The 400m Hills of England. English hills at or above 400m and below 500m in height that have 30m minimum drop, accompanying the main list are three categories of sub hills, with this hill being deleted from the 400m Sub-Four category, the criteria for which are all English hills at or above 400m and below 500m in height that have 20m or more and below 30m of drop. The list is co-authored by Myrddyn Phillips and Aled Williams and the 2nd edition of the booklet containing this list was published by Mapping Mountains Publications on the 24th April 2018.
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| The Fours - The 400m Hills of England by Myrddyn Phillips and Aled Williams |
The hill is being listed by the point (Pt. 404.4m) notation and it is adjoined to the Axe Edge group of hills, which are situated in the Peak District, and it is positioned with the A515 road to its north-east and has the town of Buxton towards the north north-west.
When the 1st edition of the The Fours was published by Europeaklist in December 2013, this hill was included as a 400m Sub-Four and listed with an estimated c 22m of drop, based on the 405m summit spot height that appears on the Ordnance Survey 1:25,000 Explorer map and an estimated c 383m col height based on interpolation of 5m contouring between 380m – 385m. However, as the col is on land that is a part of the Hillhead Quarry the 1:50,000 and 1:25,000 maps do not show continuous contouring.
%20-%201%2025000.jpg) |
| Extract from the Ordnance Survey 1:25,000 Explorer map |
One of the resources recently available online is the mapping on the OS Maps website and the details for this hill were subsequently re-assessed against this mapping. This is the replacement for OS Get-a-map and had contours at 5m intervals which were proving consistently more accurate compared to the 5m contours that sometimes appear on the Ordnance Survey 1:25,000 Explorer map and used to appear on the online Vector Map Local. This mapping had col contouring between 385m – 390m, with interpolation placing the height of the col as an estimated c 386m, and when coupled with the 405m summit spot height these values gave this hill an estimated c 19m of drop.
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| Extract from the interactive mapping hosted on the OS Maps website |
However, it was not until LIDAR became available that the details for this hill could be accurately re-assessed. The LIDAR (Light Detection & Ranging) technique produced highly accurate height data that is now freely available for much of England and Wales.
Therefore, the deletion of this hill from 400m Sub-Four status is due to detail on contemporary maps produced from Ordnance Survey data and subsequent confirmation by LIDAR analysis, resulting in a 404.4m summit height and a 384.9m col height, with these values giving this hill 19.4m of drop, which is insufficient for it to be classified as a 400m Sub-Four.
The full details for the hill are:
Group: Axe Edge
Name: Pt. 404.4m
OS 1:50,000 map: 119
Summit Height: 404.4m (LIDAR)
Summit Grid Reference: SK 07380 69895 (LIDAR)
Col Height: 384.9m (LIDAR)
Col Grid Reference: SK 07349 69773 (LIDAR)
Drop: 19.4m (LIDAR)
For the additions, deletions and reclassifications to The Fours reported on Mapping Mountains since the December 2013 publication of the list by Europeaklist please consult the following Change Registers:
Myrddyn Phillips and Aled Williams (September 2018)
Mapping Mountains - Hill Reclassifications - The Fours
Dow Low (SK 099 675) – 400m Sub-Four addition (25th reclassification)
There has been an addition to the listing of The Fours due to analysis of data on the OS Maps website, which is the recent replacement for OS Get-a-map, with confirmation from subsequent LIDAR analysis conducted by Myrddyn Phillips. The Fours is the title for the list of 400m hills of England and takes in all English hills at or above 400m and below 500m in height that have a minimum 30m of drop, the list is co-authored by Myrddyn Phillips and Aled Williams and the 2nd edition of the booklet containing this list was published by Mapping Mountains Publications on the 24th April 2018.
Accompanying the main list of The Fours are three categories of sub hills, with this hill being added to the 400m Sub-Fours. The criteria for 400m Sub-Four status are all English hills at or above 400m and below 500m in height that have 20m or more and below 30m of drop.
Prior to analysis of data on OS Maps this hill was not classified as its present construction is the result of mining activity from the Hindlow Quarry; therefore it does not possess any upper ring contours on the Ordnance Survey 1:50,000 Landranger or 1:25,000 Explorer maps.
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| Extract from the Ordnance Survey 1:25,000 Explorer map |
The land where the summit of this hill is situated is positioned on that associated with Dow Low (SK 093 675) and therefore it is listed by the same name. The hill is situated in the Southern Pennines and is placed in Region 36, with its Cardinal Hill being Axe Edge (SK 035 706). The hill is positioned with the A 515 road to its north-east and has the town of Buxton to its north-west.
As the summit of the hill is not a part of designated open access land and a part of a working mine permission to visit should be sought, for those wishing to do so a public footpath passes relatively close to the summit of the hill and can be accessed from near Dowlow Farm to the north-east.
The initial addition of this hill to 400m Sub-Four status is due to the analysis of data on the OS Maps website coupled with analysis of imagery on Google Earth concluding that the hill is solid and stable. The mapping on the OS Maps website gives contour intervals at 5m which has enabled the height of the summit and col to be estimated when compared to the lack of detail on the Ordnance Survey 1:50,000 Landranger and 1:25,000 Explorer maps.
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| Extract from OS Maps |
However, it was not until LIDAR became available that the details for this hill could be accurately re-assessed. The LIDAR (Light Detection & Ranging) technique produced highly accurate height data that is now freely available for much of England and Wales.
%20-%20LIDAR%20summit%203.jpg) |
| LIDAR image of Dow Low (SK 099 675) |
Therefore, the confirmation of the addition of this hill to 400m Sub-Four status is due to LIDAR analysis, resulting in a 414.9m summit height and a 391.2m col height, with these values giving this hill 23.7m of drop, which is sufficient for it to be classified as a 400m Sub-Four.
The full details for the hill are:
Cardinal Hill: Axe Edge
Name: Dow Low
OS 1:50,000 map: 119
Summit Height: 414.9m (LIDAR)
Summit Grid Reference: SK 09975 67525 (LIDAR)
Col Height: 391.2m (LIDAR)
Col Grid Reference: SK 10093 67681 (LIDAR)
Drop: 23.7m (LIDAR)
For the additions, deletions and reclassifications to The Fours reported on Mapping Mountains since the December 2013 publication of the list by Europeaklist please consult the following Change Registers:
Myrddyn Phillips and Aled Williams (September 2018)
Mapping Mountains - Hill Reclassifications - The Fours
Dow Low (SK 107 673) – 400m Sub-Four addition (24th reclassification)
There has been an addition to the listing of The Fours - The 400m Hills of England due to analysis of data on the OS Maps website, which is the recent replacement for OS Get-a-map, with confirmation from subsequent LIDAR analysis conducted by Myrddyn Phillips. The Fours is the title for the list of 400m hills of England and takes in all English hills at or above 400m and below 500m in height that have a minimum 30m of drop, the list is co-authored by Myrddyn Phillips and Aled Williams and the 2nd edition of the booklet containing this list was published by Mapping Mountains Publications on the 24th April 2018.
Accompanying the main list of The Fours are three categories of sub hills, with this hill being added to the 400m Sub-Fours. The criteria for 400m Sub-Four status are all English hills at or above 400m and below 500m in height that have 20m or more and below 30m of drop.
Prior to analysis of data on OS Maps this hill was not classified as its present construction is the result of mining activity from the Hindlow Quarry; therefore it does not possess any upper ring contours on the Ordnance Survey 1:50,000 Landranger or 1:25,000 Explorer maps.
 |
| Extract from the Ordnance Survey 1:25,000 Explorer map |
The land where the summit of this hill is situated is positioned on that associated with Dow Low (SK 093 675) and therefore it is listed by the same name. The hill is situated in the Southern Pennines and is placed in Region 36, with its Cardinal Hill being Axe Edge (SK 035 706). The hill is positioned with the A 515 road to its north and has the town of Buxton to its north-west.
 |
| View of Dow Low (SK 107 673) |
As the summit of the hill is not a part of designated open access land and a part of a working mine permission to visit should be sought, for those wishing to do so a public footpath passes relatively close to the summit of the hill to its east.
The initial addition of this hill to 400m Sub-Four status is due to the analysis of data on the OS Maps website coupled with analysis of imagery on Google Earth concluding that the hill is solid and stable. The mapping on the OS Maps website gives contour intervals at 5m which has enabled the height of the summit and col to be estimated when compared to the lack of detail on the Ordnance Survey 1:50,000 Landranger and 1:25,000 Explorer maps.
 |
| Extract from OS Maps |
However, it was not until LIDAR became available that the details for this hill could be accurately re-assessed. The LIDAR (Light Detection & Ranging) technique produced highly accurate height data that is now freely available for much of England and Wales.
%20-%20LIDAR%20hill%204.jpg) |
| LIDAR image of Dow Low (SK 107 673) |
Therefore, the confirmation of the addition of this hill to 400m Sub-Four status is due to LIDAR analysis, resulting in a 410.7m summit height and a 387.3m col height, with these values giving this hill 23.3m of drop, which is sufficient for it to be classified as a 400m Sub-Four.
The full details for the hill are:
Cardinal Hill: Axe Edge
Name: Dow Low
OS 1:50,000 map: 119
Summit Height: 410.7m (LIDAR)
Summit Grid Reference: SK 10723 67331 (LIDAR)
Col Height: 387.3m (LIDAR)
Col Grid Reference: SK 10236 67809 (LIDAR)
Drop: 23.3m (LIDAR)
For the additions, deletions and reclassifications to The Fours reported on Mapping Mountains since the December 2013 publication of the list by Europeaklist please consult the following Change Registers:
Myrddyn Phillips and Aled Williams (August 2018)
Mapping Mountains - Hill Reclassifications - The Fours
Dow Low (SK 098 678) – 400m Sub-Four addition (23rd reclassification)
There has been an addition to the listing of The Fours due to analysis of data on the OS Maps website, which is the recent replacement for OS Get-a-map, with confirmation from subsequent LIDAR analysis conducted by Myrddyn Phillips. The Fours is the title for the list of 400m hills of England and takes in all English hills at or above 400m and below 500m in height that have a minimum 30m of drop, the list is co-authored by Myrddyn Phillips and Aled Williams and the 2nd edition of the booklet containing this list was published by Mapping Mountains Publications on the 24th April 2018.
Accompanying the main list of The Fours are three categories of sub hills, with this hill being added to the 400m Sub-Fours. The criteria for 400m Sub-Four status are all English hills at or above 400m and below 500m in height that have 20m or more and below 30m of drop.
Prior to analysis of data on OS Maps this hill was not classified as its present construction is the result of mining activity from the Hindlow Quarry; therefore it does not possess any upper ring contours on the Ordnance Survey 1:50,000 Landranger or 1:25,000 Explorer maps.
 |
| Extract from the Ordnance Survey 1:25,000 Explorer map |
The land where the summit of this hill is situated is positioned on that associated with Dow Low (SK 093 675) and therefore it is listed by the same name. The hill is situated in the Southern Pennines and is placed in Region 36, with its Cardinal Hill being Axe Edge (SK 035 706). The hill is positioned between the B 5053 road which is to its west and the A 515 road to its north-east and has the town of Buxton to its north north-west.
 |
| View of Dow Low (SK 098 678) |
As the summit of the hill is not a part of designated open access land and a part of a working quarry permission to visit should be sought, for those wishing to do so an ascent from the north-east may prove the easiest.
The initial addition of this hill to 400m Sub-Four status is due to the analysis of data on the OS Maps website coupled with analysis of imagery on Google Maps and Google Earth concluding that the hill is solid and stable. The mapping on the OS Maps website gives contour intervals at 5m which has enabled the height of the summit and col to be estimated when compared to the lack of detail on the Ordnance Survey 1:50,000 Landranger and 1:25,000 Explorer maps. Therefore with an estimated summit height of c 416m based on an uppermost 415m ring contour on OS Maps and an estimated col height of c 388m, based on col contouring on OS Maps between 385m – 390m, these values give this hill an estimated c 28m of drop, which is sufficient for it to be classified as a 400m Sub-Four.
 |
| Extract from OS Maps |
However, it was not until LIDAR became available that the details for this hill could be accurately re-assessed. The LIDAR (Light Detection & Ranging) technique produced highly accurate height data that is now freely available for much of England and Wales.
%20-%20LIDAR%20hill%201.jpg) |
| LIDAR image of Dow Low (SK 098 678) |
Therefore, the confirmation of the addition of this hill to 400m Sub-Four status is due to LIDAR analysis, resulting in a 419.2m summit height and a 398.0m col height, with these values giving this hill 21.2m of drop, which is sufficient for it to be classified as a 400m Sub-Four.
The full details for the hill are:
Cardinal Hill: Axe Edge
Name: Dow Low
OS 1:50,000 map: 119
Summit Height: 419.2m (LIDAR)
Summit Grid Reference: SK 09807 67866 (LIDAR)
Col Height: 398.0m (LIDAR)
Col Grid Reference: SK 09828 67761 (LIDAR)
Drop: 21.2m (LIDAR)
For the additions, deletions and reclassifications to The Fours reported on Mapping Mountains since the December 2013 publication of the list by Europeaklist please consult the following Change Registers:
Myrddyn Phillips and Aled Williams (August 2018)
Mapping Mountains - Hill Reclassifications - The Fours
THIS HILL HAS SUBSEQUENTLY BEEN RECLASSIFIED TO FOUR STATUS
Dow Low (SK 094 680) – 400m Sub-Four addition (22nd reclassification)
There has been an addition to the listing of The Fours due to analysis of data on the OS Maps website, which is the recent replacement for OS Get-a-map. The Fours is the title for the list of 400m hills of England and takes in all English hills at or above 400m and below 500m in height that have a minimum 30m of drop, the list is co-authored by Myrddyn Phillips and Aled Williams and the 2nd edition of the booklet containing this list was published by Mapping Mountains Publications on the 24th April 2018.
Accompanying the main list of The Fours are three categories of sub hills, with this hill being added to the 400m Sub-Fours. The criteria for 400m Sub-Four status are all English hills at or above 400m and below 500m in height that have 20m or more and below 30m of drop.
Prior to analysis of data on OS Maps this hill was not classified as its present construction is the result of mining activity from the Hindlow Quarry; therefore it does not possess any upper ring contours on the Ordnance Survey 1:50,000 Landranger or 1:25,000 Explorer maps.
 |
| Extract from the Ordnance Survey 1:25,000 Explorer map |
The land where the summit of the hill is situated is positioned on that associated with Dow Low (SK 093 675) and therefore it is listed by the same name. The hill is situated in the Southern Pennines and is placed in Region 36, with its Cardinal Hill being Axe Edge (SK 035 706). The hill is positioned between the B 5053 road which is to its west and the A 515 road to its north-east and has the town of Buxton to its north-west.
 |
| View of Dow Low (SK 094 680) |
As the summit of the hill is not a part of designated open access land and a part of a working quarry permission to visit should be sought, for those wishing to do so an ascent from the north-east may prove the easiest.
The addition of this hill to 400m Sub-Four status is due to the analysis of data on the OS Maps website coupled with analysis of imagery on Google Maps and Google Earth with the conclusion that the hill is solid and stable. The mapping on the OS Maps website gives contour intervals at 5m which has enabled the height of the summit and col to be estimated when compared to the lack of detail on the Ordnance Survey 1:50,000 Landranger and 1:25,000 Explorer maps. Therefore with an estimated summit height of c 426m based on an uppermost 425m ring contour on OS Maps and an estimated col height of c 397m, based on col contouring on OS Maps between 395m – 400m, this hill is now listed with c 29m of drop, which is sufficient for it to be classified as a 400m Sub-Four.
 |
| Extract from OS Maps |
The full details for the hill are:
Cardinal Hill: Axe Edge
Summit Height: c 426m
Name: Dow Low
OS 1:50,000 map: 119
Summit Grid Reference: SK 094 680
Drop: c 29m
For the additions, deletions and reclassifications to The Fours reported on Mapping Mountains since the December 2013 publication of the list by Europeaklist please consult the following Change Registers:
Myrddyn Phillips and Aled Williams (August 2018)
Mapping Mountains - Hill Reclassifications - The Fours
Back Pasture Hill (SD 905 680) – 400m Sub-Four addition (21st reclassification)
There has been an addition to the listing of the The Fours – The 400m Hills of England, with the summit height, col height and their locations, the drop and status of the hill derived from detail on contemporary maps produced from Ordnance Survey data and subsequently confirmed from LIDAR analysis conducted by Myrddyn Phillips.
 |
| Back Pasture Hill (SD 905 680). Photo: Ronnie Bowron |
The criteria for the list that this reclassification applies to are:
The Fours – The 400m Hills of England. English hills at or above 400m and below 500m in height that have 30m minimum drop, accompanying the main list are three categories of sub hills, with this hill being added to the 400m Sub-Four category, the criteria for which are all English hills at or above 400m and below 500m in height that have 20m or more and below 30m of drop. The list is co-authored by Myrddyn Phillips and Aled Williams and the 2nd edition of the booklet containing this list was published by Mapping Mountains Publications on the 24th April 2018.
 |
| The Fours - The 400m Hills of England by Myrddyn Phillips and Aled Williams |
The name the hill is listed by is Back Pasture Hill and it is adjoined to the Pen y Ghent group of hills, which are situated in the central Pennines, and it is positioned with minor roads to its north-west, south and north-east, and the B6160 road to its east, and has the small communities of Arncliffe towards the north north-east and Malham towards the south.
When the 1st edition of the The Fours was published by Europeaklist in December 2013, this hill was not included in the accompanying list of 400m Sub-Fours, however it was documented with an estimated c 16m of drop, based on the 484m summit spot height that appears on the Ordnance Survey 1:25,000 Explorer map and an estimated c 468m col height, based on interpolation of 10m contouring between 460m -470m.
%20-%201%2025000.jpg) |
| Extract from the Ordnance Survey 1:25,000 Explorer map |
Since the 1st edition of this list was published by Europeaklist in December 2013 there have been a number of maps made available online. Some of these are historic such as the series of Six-Inch maps on the National Library of Scotland website. Whilst others were digitally updated such as the Ordnance Survey Vector Map Local that was hosted on the Geograph website and which was entitled the Interactive Coverage Map, whilst others are current and digitally updated such as the interactive mapping on the Magic Maps and WalkLakes websites.
One of the resources recently available online is the mapping on the OS Maps website and the details for this hill were subsequently re-assessed against this mapping. This is the replacement for OS Get-a-map and until recent times had contours at 5m intervals which were proving consistently more accurate compared to the 5m contours that sometimes appear on the Ordnance Survey 1:25,000 Explorer map and used to appear on the online Vector Map Local. This mapping had col contouring between 460m – 465m, with interpolation placing the height of the col as an estimated c 464m, and when coupled with the 484m summit spot height, these values gave this hill an estimated c 20m of drop. Therefore, it was listed as a 400m Sub-Four when the 2nd edition of the The Fours – The 400m Hills of England was published by Mapping Mountains Publications in April 2018.
 |
| Extract from the interactive mapping on the OS Maps website |
However, it was not until LIDAR became available that the details for this hill could be accurately re-assessed. The LIDAR (Light Detection & Ranging) technique produced highly accurate height data that is now freely available for much of England and Wales.
%20-%20LIDAR%20hill%201.jpg) |
| LIDAR image of Back Pasture Hill (SD 905 680) |
Therefore, the addition of this hill to 400m Sub-Four status is due to detail on contemporary maps produced from Ordnance Survey data and subsequently confirmed from LIDAR analysis, resulting in a 485.8m summit height and a 464.4m col height, with these values giving this hill 21.4m of drop, which is sufficient for it to be classified as a 400m Sub-Four.
The full details for the hill are:
Group: Pen y Ghent
Name: Back Pasture Hill
OS 1:50,000 map: 98
Summit Height: 485.8m (LIDAR)
Summit Grid Reference: SD 90511 68095 (LIDAR)
Col Height: 464.4m (LIDAR)
Col Grid Reference: SD 90234 68433 (LIDAR)
Drop: 21.4m (LIDAR)
For the additions, deletions and reclassifications to The Fours reported on Mapping Mountains since the December 2013 publication of the list by Europeaklist please consult the following Change Registers:
Our thanks to Ronnie Bowron for permission to reproduce his photo of Back Pasture Hill
Myrddyn Phillips and Aled Williams (August 2018)
Mapping Mountains - Hill Reclassifications - The Fours
Kitley Hill (NY 989 051) – 400m Sub-Four deletion (20th reclassification)
There has been a deletion from the listing of The Fours - The 400m Hills of England, with the summit height, col height and their locations, the drop and status of the hill derived from detail on contemporary maps produced from Ordnance Survey data and subsequently confirmed by LIDAR analysis conducted by Myrddyn Phillips.
%20-%20LIDAR%20hill%201.jpg) |
| LIDAR image of Kitley Hill (NY 989 051) |
The criteria for the list that this deletion applies to are:
The Fours – The 400m Hills of England. English hills at or above 400m and below 500m in height that have 30m minimum drop, accompanying the main list are three categories of sub hills, with this hill being deleted from the 400m Sub-Four category, the criteria for which are all English hills at or above 400m and below 500m in height that have 20m or more and below 30m of drop. The list is co-authored by Myrddyn Phillips and Aled Williams and the 2nd edition of the booklet containing this list was published by Mapping Mountains Publications on the 24th April 2018.
 |
| The Fours - The 400m Hills of England by Myrddyn Phillips and Aled Williams |
The name of the hill is listed by is Kitley Hill and it is adjoined to the Great Shunner Fell group of hills, which are situated in the Northern and Central Pennines, and it is positioned above the Arkle Beck and the valley of Arkengarthdale which are to its south.
Prior to analysis of data on OS Maps this hill was listed with an estimated c 20m of drop based on the 454m summit spot height that appears on the Ordnance Survey 1:25,000 Explorer map and an estimated c 434m col height, based on interpolation of 10m contouring between 430m – 440m.
%20-%201%2025000.jpg) |
| Extract from the Ordnance Survey 1:25,000 Explorer map |
When the 2nd edition of the The Fours – The 400m Hills of England was published by Mapping Mountains Publications in April 2018, this hill was not included in the accompanying sub list, as it was considered not to meet the criteria used for this sub category, based on analysis of data on the OS Maps website. This mapping gives contour intervals at 5m which has enabled the height of the col to be narrowed down when compared to the 10m contour intervals given on the Ordnance Survey 1:50,000 Landranger and 1:25,000 Explorer maps, resulting in it being listed with an estimated c 17m of drop.
 |
| Extract from the interactive mapping on the OS Maps website |
However, it was not until LIDAR became available that the details for this hill could be accurately re-assessed. The LIDAR (Light Detection & Ranging) technique produced highly accurate height data that is now freely available for much of England and Wales.
Therefore, the confirmation of the deletion of this hill from 400m Sub-Four status is due to LIDAR analysis, resulting in a 453.9m summit height and a 436.4m col height, with these values giving this hill 17.5m of drop, which is insufficient for it to be classified as a 400m Sub-Four.
The full details for the hill are:
Group: Great Shunner Fell
Name: Kitley Hill
OS 1:50,000 map: 92
Summit Height: 453.9m (LIDAR)
Summit Grid Reference: NY 98938 05179 (LIDAR)
Col Height: 436.4m (LIDAR)
Col Grid Reference: NY 99101 05433 (LIDAR)
Drop: 17.5m (LIDAR)
For the additions, deletions and reclassifications to The Fours reported on Mapping Mountains since the December 2013 publication of the list by Europeaklist please consult the following Change Registers:
Myrddyn Phillips and Aled Williams (August 2018)
Mapping Mountains - Hill Reclassifications - The Fours
Citron Seat (NY 977 102) – 400m Sub-Four deletion (19th reclassification)
There has been a deletion from the listing of The Fours - The 400m Hills of England, with the summit height, col height and their locations, the drop and status of the hill derived from detail on contemporary maps produced from Ordnance Survey data and subsequently confirmed by LIDAR analysis conducted by Myrddyn Phillips.
%20-%20LIDAR%20summit%204.jpg) |
| LIDAR image of Citron Seat (N 977 102) |
The criteria for the list that this deletion applies to are:
The Fours – The 400m Hills of England. English hills at or above 400m and below 500m in height that have 30m minimum drop, accompanying the main list are three categories of sub hills, with this hill being deleted from the 400m Sub-Four category, the criteria for which are all English hills at or above 400m and below 500m in height that have 20m or more and below 30m of drop. The list is co-authored by Myrddyn Phillips and Aled Williams and the 2nd edition of the booklet containing this list was published by Mapping Mountains Publications on the 24th April 2018.
 |
| The Fours - The 400m Hills of England by Myrddyn Phillips and Aled Williams |
The name of the hill is listed by is Citron Seat and it is adjoined to the Great Shunner Fell group of hills, which are situated in the Northern and Central Pennines, and it is positioned above the River Greta and the A66 road which are to its north and the village of Bowes which is to its north north-east.
Prior to analysis of data on OS Maps this hill was listed with an estimated c 20m of drop based on the 446m summit spot height given to a triangulation pillar that appears on the Ordnance Survey 1:50,000 Landranger and 1:25,000 Explorer map and an estimated c 426m col height, based on interpolation of 10m contouring between 420m – 430m.
%20-%201%2025000.jpg) |
| Extract from the Ordnance Survey 1:25,000 Explorer map |
When the 2nd edition of the The Fours – The 400m Hills of England was published by Mapping Mountains Publications in April 2018, this hill was not included in the accompanying sub list, as it was considered not to meet the criteria used for this sub category, based on analysis of data on the OS Maps website. This mapping gives contour intervals at 5m which has enabled the height of the col to be narrowed down when compared to the 10m contour intervals given on the Ordnance Survey 1:50,000 Landranger and 1:25,000 Explorer maps, resulting in it being listed with an estimated c 18m of drop.
 |
| Extract from the interactive mapping hosted on the OS Maps website |
However, it was not until LIDAR became available that the details for this hill could be accurately re-assessed. The LIDAR (Light Detection & Ranging) technique produced highly accurate height data that is now freely available for much of England and Wales.
%20-%20LIDAR%20summit%202.jpg) |
| LIDAR summit image of Citron Seat |
%20-%20LIDAR%20col%201%20.jpg) |
| LIDAR col image of Citron Seat |
Therefore, the confirmation of the deletion of this hill from 400m Sub-Four status is due to LIDAR analysis, resulting in a 446.2m summit height and a 428.6m col height, with these values giving this hill 17.7m of drop, which is insufficient for it to be classified as a 400m Sub-Four.
The full details for the hill are:
Group: Great Shunner Fell
Name: Citron Seat
OS 1:50,000 map: 92
Summit Height: 446.2m (LIDAR)
Summit Grid Reference: NY 97799 10275 (LIDAR)
Col Height: 428.6m (LIDAR)
Col Grid Reference: NY 97857 09802 (LIDAR)
Drop: 17.7m (LIDAR)
For the additions, deletions and reclassifications to The Fours reported on Mapping Mountains since the December 2013 publication of the list by Europeaklist please consult the following Change Registers:
Myrddyn Phillips and Aled Williams (July 2018)
Mapping Mountains - Hill Reclassifications - The Fours
Brownberry (NY 940 208) – 400m Sub-Four deletion (18th reclassification)
There has been a deletion to the listing of The Fours - The 400m Hills of England due to analysis of data on the OS Maps website, which is the recent replacement for OS Get-a-map and confirmed by subsequent LIDAR analysis conducted by Myrddyn Phillips.
%20-%20LIDAR%20hill%201%20with%20col.jpg) |
| LIDAR image of Brownberry (NY 940 208) |
The criteria for the list that this deletion applies to are:
The Fours - The 400m Hills of England takes in all English hills at or above 400m and below 500m in height that have 30m minimum drop. Accompanying the main list are three categories of sub hills, with this hill being deleted from the 400m Sub-Fours; the criteria for which are all English hills at or above 400m and below 500m in height that have 20m or more and below 30m of drop. The list is co-authored by Myrddyn Phillips and Aled Williams and the 2nd edition of the booklet containing this list was published by Mapping Mountains Publications on the 24th April 2018.
 |
| The Fours - The 400m Hills of England by Myrddyn Phillips and Aled Williams |
The name the hill is listed by is Brownberry and it is situated in the Northern and Central Pennines and is placed in Region 35, Section 35A with its Cardinal Hill being Cross Fell (NY 687 343). The hill is positioned above the Grassholme Reservoir which is to its north and the Hury Reservoir to its south-east and has the small market town of Middleton-in-Teesdale towards the north.
Prior to analysis of data on OS Maps this hill was listed with an estimated c 20m of drop, based on the 406m summit spot height that appears on the Ordnance Survey 1:50,000 Landranger map and an estimated c 386m col height based on interpolation of 10m contouring between 380m – 390m that appear on the Ordnance Survey 1:50,000 Landranger and 1:25,000 Explorer maps.
 |
| Extract from the Ordnance Survey 1:50,000 Landranger map |
The deletion of this hill from 400m Sub-Four status is due to the analysis of data on the OS Maps website. This mapping gives contour intervals at 5m which has enabled the height of the col to be narrowed down when compared to the 10m contour intervals given on the Ordnance Survey 1:50,000 Landranger and 1:25,000 Explorer maps.
Therefore, with a 406m summit spot height on the Ordnance Survey 1:50,000 Landranger map and an estimated c 388m col height, based on interpolation of contouring between 385m – 390m, this hill is now listed with an estimated c 18m of drop, which is insufficient for its continued inclusion as a 400m Sub-Four.
 |
| Extract from the interactive mapping hosted on the OS Maps website |
However, it was not until LIDAR became available that the details for this hill could be accurately re-assessed. The LIDAR (Light Detection & Ranging) technique produced highly accurate height data that is now freely available for much of England and Wales.
Therefore, the deletion of this hill from 400m Sub-Four status is due to analysis of data on the OS Maps website, which is the recent replacement for OS Get-a-map and confirmed by subsequent LIDAR analysis, resulting in a 406.7m summit height and a 388.0m col height, with these values giving this hill 18.7m of drop, which is insufficient for it to be classified as a 400m Sub-Four.
The full details for the hill are:
Cardinal Hill: Cross Fell
Name: Brownberry
OS 1:50,000 map: 91, 92
Summit Height: 406.7m (LIDAR)
Summit Grid Reference: NY 94069 20879 (LIDAR)
Col Height: 388.0m (LIDAR)
Col Grid Reference: NY 94979 21421 (LIDAR)
Drop: 18.7m (LIDAR)
For the additions, deletions and reclassifications to The Fours reported on Mapping Mountains since the December 2013 publication of the 1st edition of this list by Europeaklist please consult the following Change Registers:
Mapping Mountains - Hill Reclassifications - The Fours
Haystack (NY 300 013) – 400m Sub-Four deletion (17th reclassification)
There has been a deletion to the listing of The Fours - The 400m Hills of England due to analysis of data on the OS Maps website, which is the recent replacement for OS Get-a-map and confirmed by subsequent LIDAR analysis conducted by Myrddyn Phillips.
%20-%20LIDAR%20hill%203.jpg) |
| LIDAR image of Haystack (NY 300 013) |
The Fours - The 400m Hills of England takes in all English hills at or above 400m and below 500m in height that have 30m minimum drop. Accompanying the main list are three categories of sub hills, with this hill being deleted from the 400m Sub-Fours; the criteria for which are all English hills at or above 400m and below 500m in height that have 20m or more and below 30m of drop. The list is co-authored by Myrddyn Phillips and Aled Williams and the 2nd edition of the booklet containing this list was published by Mapping Mountains Publications on the 24th April 2018.
Prior to analysis of data on the OS Maps website this hill was listed with an estimated c 20m of drop based on the 423m summit spot height that appears on the Ordnance Survey Interactive Coverage Map hosted on the Geograph website and an estimated c 403m col height, based on interpolation of 10m contouring between 400m – 410m that appear on the Ordnance Survey 1:50,000 Landranger and 1:25,000 Explorer maps and col contouring at 15m intervals and between 390m – 405m on the Harvey map.
 |
| Extract from the Ordnance Survey Interactive Coverage Map hosted on the Geograph website |
The name the hill is listed by is Haystack and it is situated in the Southern Fells of the Lake District and is placed in Region 34, Section 34D with its Cardinal Hill being The Old Man of Coniston (SD 272 978). The hill is positioned above the Greenburn Beck which is to its north-west and the Yewdale Beck which is to its south south-east and has the small community of Little Langdale towards its north-east.
As the summit of the hill is a part of designated open access land it can be approached from a number of directions with public footpaths leading toward it from stream valleys to the north-west and south south-east.
The deletion of Haystack from 400m Sub-Four status is due to the analysis of data on the OS Maps website. This mapping gives contour intervals at 5m which has enabled the height of the col to be narrowed down when compared to the 10m contour intervals given on the Ordnance Survey 1:50,000 Landranger and 1:25,000 Explorer map. Therefore, with a 423m summit spot height on the Ordnance Survey Interactive Coverage Map hosted on the Geograph website and an estimated c 404m col height, based on interpolation of contouring on OS Maps between 400m – 405m, the listed drop of this hill was altered to an estimated c 19m of drop.
 |
| Extract from the OS Maps website |
However, it was not until LIDAR became available that the details for this hill could be accurately re-assessed. The LIDAR (Light Detection & Ranging) technique produced highly accurate height data that is now freely available for much of England and Wales.
Therefore, the deletion of this hill from 400m Sub-Four status is due to analysis of data on the OS Maps website, which is the recent replacement for OS Get-a-map and confirmed by subsequent LIDAR analysis, resulting in a 422.7m summit height and a 403.7m col height, with these values giving this hill 19.0m of drop, which is insufficient for it to be classified as a 400m Sub-Four.
The full details for the hill are:
Cardinal Hill: The Old Man of Coniston
Name: Haystack
OS 1:50,000 map: 90
Summit Height: 422.7m (LIDAR)
Summit Grid Reference: NY 30062 01391 (LIDAR)
Col Height: 403.7m (LIDAR)
Col Grid Reference: NY 30009 01460 (LIDAR)
Drop: 19.0m (LIDAR)
For the additions, deletions and reclassifications to The Fours reported on Mapping Mountains since the December 2013 publication of the 1st edition of this list by Europeaklist please consult the following Change Registers:
Myrddyn Phillips and Aled Williams (July 2018)
Mapping Mountains - Hill Reclassifications - The Fours
Wansfell Pike (NY 394 041) – 400m Sub-Four reclassified to Four (16th reclassification)
There has been a reclassification to the listing of the The Fours – The 400m Hills of England, with the summit height, col height and their locations, the drop and status of the hill derived from detail on contemporary maps produced by Ordnance Survey data, coupled with information in the OS Trig Database and LIDAR summit analysis. With the reclassification subsequently confirmed by a Leica GS15 survey conducted by John Barnard, Jim Bloomer and Graham Jackson and now full LIDAR coverage conducted by Myrddyn Phillips.
%20-%20LIDAR%20summit%201.jpg) |
| LIDAR image of Wansfell Pike (NY 394 041) |
The criteria for the list that this reclassification applies to are:
The Fours – The 400m Hills of England. English hills at or above 400m and below 500m in height that have 30m minimum drop, accompanying the main list are three categories of sub hills, with this hill reclassified from the 400m Sub-Four category, the criteria for which are all English hills at or above 400m and below 500m in height that have 20m or more and below 30m of drop. The list is co-authored by Myrddyn Phillips and Aled Williams and the 2nd edition of the booklet containing this list was published by Mapping Mountains Publications on the 24th April 2018.
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| The Fours - The 400m Hills of England by Myrddyn Phillips and Aled Williams |
The name the hill is listed by is Wansfell Pike, and it is adjoined to the High Street group of hills which are situated in the eastern fells of the Lake District, and it is positioned with the A591 road to its west and the A592 road to its east, and has the town of Ambleside towards the west.
Prior to analysis of data of the interactive mapping hosted on the OS Maps website this hill was listed with an estimated c 26m of drop, based on an estimated c 483m summit height ascertained from an optical survey taken from the summit area of Baystones (486.9m at NY 40312 05143) which concluded that Wansfell Pike is at least 4m lower, and an estimated c 457m col height based on 10m contouring between 450m – 460m that appear on the Ordnance Survey 1:25,000 Explorer map.
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| Extract from the Ordnance Survey 1:25,000 Explorer map |
The reclassification of this hill is due to the analysis of data on the OS Maps website, coupled with information in the OS Trig Database and LIDAR summit analysis. One of the resources recently available online is the mapping on the OS Maps website, this is the replacement for OS Get-a-map and until recent times had contours at 5m intervals which were proving consistently more accurate compared to the 5m contours that sometimes appear on the Ordnance Survey 1:25,000 Explorer map and used to appear on the online Vector Map Local. This mapping had col contouring between 450m – 455m, with interpolation placing the height of the col as an estimated c 453 - c 454.
The OS Trig Database records the position of a buried block at the summit of this hill with a height of 483.717m, with initial LIDAR summit analysis giving a height of 483.7m, and when coupled with the estimated col height these values gave this hill an estimated c 30m of drop.
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| Extract from the OS Maps website |
However, it was not until the Leica GS15 survey that the details for this hill could be accurately re-assessed. This confirmed the reclassification of this hill and subsequent analysis of full LIDAR coverage has done likewise.
%20-%20LIDAR%20summit%202.jpg) |
| LIDAR summit image of Wansfell Pike |
%20-%20LIDAR%20col%202.jpg) |
| LIDAR col image of Wansfell Pike |
Therefore, the confirmation of the reclassification of this hill from 400m Sub-Four status is due to a Leica GS15 survey, resulting in a 484.3m summit height and a 453.5m col height, with these values giving this hill 30.8m of drop, which is sufficient for it to be classified as a Four.
The full details for the hill are:
Group: High Street
Name: Wansfell Pike
OS 1:50,000 map: 90
Summit Height: 484.3m (Leica GS15)
Summit Grid Reference: NY 39415 04170 (Leica GS15)
Col Height: 453.5m (Leica GS15)
Col Grid Reference: NY 40045 04658 (Leica GS15)
Drop: 30.8m (Leica GS15)
For the additions, deletions and reclassifications to The Fours -The 400m Hills of England reported on Mapping Mountains since the December 2013 publication of the list by Europeaklist please consult the following Change Registers:
Mapping Mountains - Hill Reclassifications - The Fours
Little Meldrum (NY 422 227) – 400m Sub-Four deletion (15th reclassification)
There has been a deletion from the listing of The Fours - The 400m Hills of England, due to analysis of data on the OS Maps website, which is the recent replacement for OS Get-a-map. With the summit height, col height and their locations, the drop and status of the hill subsequently confirmed by LIDAR analysis conducted by Myrddyn Phillips.
%20-%20LIDAR%20hill%202.jpg) |
| LIDAR image of Little Meldrum (NY 422 227) |
The criteria for the list that this deletion applies to are:
The Fours – The 400m Hills of England. English hills at or above 400m and below 500m in height that have 30m minimum drop, accompanying the main list are three categories of sub hills, with this hill being deleted from the 400m Sub-Four category, the criteria for which are all English hills at or above 400m and below 500m in height that have 20m or more and below 30m of drop. The list is co-authored by Myrddyn Phillips and Aled Williams and the 2nd edition of the booklet containing this list was published by Mapping Mountains Publications on the 24th April 2018.
The name the hill is listed by is Little Meldrum and it is situated in the Eastern Fells of the Lake District and is placed in Region 34, Section 34C with its Cardinal Hill being Helvellyn (NY 342 151). The hill is positioned above Ullswater which is to its south-east and is situated between the small communities of Matterdale End to the west north-west and Pooley Bridge to the east north-east.
As the summit of the hill is not a part of designated open access land permission to visit should be sought, for those wishing to do so it can be approached via a public footpath that skirts the summit of the hill to its south, or it can be combined with near neighbours to take in a linear ridge walk.
Prior to analysis of data on the OS Maps website this hill was listed with an estimated c 20m of drop, based on the 404m summit spot height that appears on the Ordnance Survey 1:25,000 Explorer map and an estimated c 384m col height based on interpolation of 10m contouring between 380m – 390m.
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| Extract from the Ordnance Survey Interactive Coverage Map hosted on the Geograph website |
The deletion of Little Meldrum from 400m Sub-Four status is due to the analysis of data on the OS Maps website. This mapping has 5m contour intervals which enables the height of the col to be narrowed down when compared to the 10m contour intervals on the Ordnance Survey 1:50,000 Landranger and 1:25,000 Explorer maps.
Therefore, with a 404m summit spot height that appears on the Ordnance Survey 1:25,000 Explorer map and an estimated c 388m col height, based on interpolation of OS Maps contouring between 385m – 390m, this hill is listed with an estimated c 16m of drop, which is insufficient for its continued inclusion as a 400m Sub-Four.
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| Extract from OS Maps |
However, it was not until LIDAR became available that the details for this hill could be accurately re-assessed. The LIDAR (Light Detection & Ranging) technique produced highly accurate height data that is now freely available for much of England and Wales.
Therefore, the confirmation of the deletion of this hill from 400m Sub-Four status is due to LIDAR analysis, resulting in a 403.6m summit height and a 385.1m col height, with these values giving this hill 18.6m of drop, which is insufficient for it to be classified as a 400m Sub-Four.
The full details for the hill are:
Cardinal Hill: Helvellyn
Name: Little Meldrum
OS 1:50,000 map: 90
Summit Height: 403.6m (LIDAR)
Summit Grid Reference: NY 42201 22772 (LIDAR)
Col Height: 385.1m (LIDAR)
Col Grid Reference: NY 42313 22850 (LIDAR)
Drop: 18.6m (LIDAR)
For the additions, deletions and reclassifications to The Fours - The 400m Hills of England reported on Mapping Mountains since the December 2013 publication of the list by Europeaklist please consult the following Change Registers:
Myrddyn Phillips and Aled Williams (July 2018)
THIS HILL HAS SUBSEQUENTLY BEEN RECLASSIFIED TO DOUBLE SUB-FOUR STATUS
Silver How (NY 324 066) – 390m Double Sub-Four reclassified to 390m Sub-Four (14th reclassification)
There has been a reclassification to the listing of The Fours due to analysis of data on the OS Maps website, which is the recent replacement for OS Get-a-map. The Fours is the title for the list of 400m hills of England and takes in all English hills at and above 400m and below 500m in height that have a minimum 30m of drop, the list is co-authored by Myrddyn Phillips and Aled Williams and the 2nd edition of the booklet containing this list was published by Mapping Mountains Publications on the 24th April 2018.
Accompanying the main list of The Fours are three categories of sub hills, with this hill being reclassified from a 390m Double Sub-Four to a 390m Sub-Four. The criteria for 390m Double Sub-Four status are all English hills at or above 390m and below 400m in height that have 20m or more and below 30m of drop, with the criteria for 390m Sub-Four status being all English hills at or above 390m and below 400m in height that have 30m minimum drop.
Prior to analysis of data on OS Maps this hill was listed with c 28m of drop based on the 395m summit spot height that appears on the Ordnance Survey 1:25,000 Explorer map and an estimated col height of c 367m based on interpolation of col contouring between 360m – 370m on the 1:50,000 Landranger and 1:25,000 Explorer maps.
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| Extract from the Ordnance Survey Interactive Coverage Map hosted on the Geograph website |
The name the hill is listed by is Silver How and it is situated in the Central and Western Fells of the Lake District and is placed in Region 34, Section 34B with its Cardinal Hill being Scafell Pike (NY 215 072). The hill is positioned above the B 5343 road which is to its south and the village of Grasmere which is to its north-east.
The summit of the hill is a part of designated open access land and can be approached from a number of directions, with public footpaths leading toward the hill from the north, east and south.
The reclassification of this hill to 390m Sub-Four status is due to the analysis of data on the OS Maps website. This mapping gives contour intervals at 5m which has enabled the interpolated height of the col to be narrowed down when compared to the 10m contour intervals given on the Ordnance Survey 1:50,000 Landranger and 1:25,000 Explorer maps. Therefore with a 395m summit spot height on the 1:25,000 Explorer map and an estimated col height of c 364m, based on interpolation of col contouring on OS Maps between 360m – 365m, this hill is now listed with c 31m of drop, which is sufficient for its reclassification to 390m Sub-Four status.
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| Extract from OS Maps |
The full details for the hill are:
Cardinal Hill: Scafell Pike
Summit Height: 395m
Name: Silver How
OS 1:50,000 map: 90
Summit Grid Reference: NY 32477 06643
Drop: c 31m
For the additions, deletions and reclassifications to The Fours reported on Mapping Mountains since the December 2013 publication of the list by Europeaklist please consult the following Change Registers:
Mapping Mountains - Hill Reclassifications - The Fours
Pt. 465.1m (NT 830 141) – 400m Sub-Four reclassified to Four (13th reclassification)
There has been a reclassification to the listing of The Fours due to analysis of data on the OS Maps website, which is the recent replacement for OS Get-a-map with confirmation from subsequent LIDAR analysis conducted by Myrddyn Phillips. The Fours is the title for the list of 400m hills of England and takes in all English hills at and above 400m and below 500m in height that have a minimum 30m of drop, the list is co-authored by Myrddyn Phillips and Aled Williams and the 2nd edition of the booklet containing this list was published by Mapping Mountains Publications on the 24th April 2018.
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| Pt. 465.1m (NT 830 141). Photo: Rob Woodall |
Accompanying the main list of The Fours are three categories of sub hills, with this hill being reclassified from the 400m Sub-Fours. The criteria for 400m Sub-Four status are all English hills at and above 400m and below 500m in height that have 20m or more and below 30m of drop.
Prior to analysis of data on OS Maps this hill was listed with an estimated c 28m of drop, based on the 465m summit spot height that appears on the Ordnance Survey 1:25,000 Explorer map and an estimated c 437m col height, based on interpolation of 10m contouring between 430m – 440m that appear on the 1:50,000 Landranger and 1:25,000 Explorer map.
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| Extract from the Ordnance Survey Interactive Coverage Map hosted on the Geograph website |
As the authors do not know an individual name for this hill it appears listed under the point (Pt. 465.1m) notation and it is situated in the Scottish Border to the River Tyne area and is placed in Region 33, with its Cardinal Hill being The Cheviot (NT 909 205). The hill is positioned between the Westhope Burn to its west and the Easthope Burn to its east and is within 600 metres of the border with Scotland which is to its north north-west.
The summit of the hill is a part of designated open access land and can be approached from the Pennine Way that follows the course of the border hereabouts or from the stream valley to its south, with other options for access following hill ridges either side of the ridge this hill is situated on.
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| The summit of Pt. 465.1m (NT 830 141). Photo: Rob Woodall |
The initial reclassification of this hill from Sub-Four status is due to analysis of data on the OS Maps website. This mapping gives contour intervals at 5m which has enabled the height of the col to be narrowed down compared to the 10m contour intervals given on the Ordnance Survey 1:50,000 Landranger and 1:25,000 Explorer map. Therefore with a 465m summit spot height on the 1:25,000 Explorer map and an estimated col height of c 433m, based on col contouring on OS Maps between 430m – 435m, this hill is now listed with an estimated c 32m of drop, which is sufficient for it to be reclassified to Four status.
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| Extract from OS Maps |
However, it was not until LIDAR became available that the details for this hill could be accurately re-assessed. The LIDAR (Light Detection & Ranging) technique produced highly accurate height data that is now freely available for much of England and Wales.
%20-%20LIDAR%20hill%203.jpg) |
| LIDAR image of Pt. 465.1m (NT 830 141) |
Therefore, the confirmation of the reclassification of this hill from Sub-Four status is due to LIDAR analysis, resulting in a 465.1m summit height and a 433.1m col height, with these values giving this hill 32.1m of drop, which is sufficient for it to be classified as a Four.
The full details for the hill are:
Cardinal Hill: The Cheviot
Name: Pt. 465.1m
OS 1:50,000 map: 80
Summit Height: 465.1m (LIDAR)
Summit Grid Reference: NT 83019 14191 (LIDAR)
Col Height: 433.1m (LIDAR)
Col Grid Reference: NT 82972 14294 (LIDAR)
Drop: 32.1m (LIDAR)
For the additions, deletions and reclassifications to The Fours reported on Mapping Mountains since the December 2013 publication of the list by Europeaklist please consult the following Change Registers:
Myrddyn Phillips and Aled Williams (June 2018)
Mapping Mountains - Hill Reclassifications - The Fours
Pt. 423.9m (SX 753 768) – 400m Sub-Four addition (12th reclassification)
There has been an addition to the listing of the The Fours – The 400m Hills of England, with the summit height, col height and their locations, the drop and status of the hill derived from LIDAR analysis initially conducted by Aled Williams and subsequently by Myrddyn Phillips.
%20-%20LIDAR%20hill%203.jpg) |
| LIDAR image of Pt. 423.9m (SX 753 768) |
The criteria for the list that this addition applies to are:
The Fours – The 400m Hills of England. English hills at or above 400m and below 500m in height that have 30m minimum drop, accompanying the main list are three categories of sub hills, with this hill being added to the 400m Sub-Four category, the criteria for which are all English hills at or above 400m and below 500m in height that have 20m or more and below 30m of drop. The list is co-authored by Myrddyn Phillips and Aled Williams and the 2nd edition of the booklet containing this list was published by Mapping Mountains Publications on the 24th April 2018.
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| The Fours - The 400m Hills of England by Myrddyn Phillips and Aled Williams |
The hill is being listed by the Point (Pt. 423.9m) notation and it is adjoined to the Broad Barrow group of hills, which are situated in Dartmoor in the south-west of England, and it is positioned with minor roads to its north, north-west and north-east, and the B3387 road to its south, and has the small community of Haytor Vale towards the east north-east.
%20-%201%2025000.jpg) |
| Extract from the Ordnance Survey 1:25,000 Explorer map |
When the 1st edition of the The Fours was published by Europeaklist in December 2013, this hill was not included in the 400m Sub-Four category and was listed with an estimated c 18m of drop, based on the 422m summit spot height that appeared on the Ordnance Survey Vector Map Local hosted on the Geograph website and which was entitled the Interactive Coverage Map and an estimated c 404m col height, based on interpolation of 10m contouring between 400m - 410m.
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| Extract from the Ordnance Survey Vector Map Local hosted on the Geograph website and which was entitled the Interactive Coverage Map |
However, it was not until LIDAR became available that the details for this hill could be accurately re-assessed. The LIDAR (Light Detection & Ranging) technique produced highly accurate height data that is now freely available for much of England and Wales.
Therefore, the addition of this hill to 400m Sub-Four status is due to LIDAR analysis, resulting in a 423.9m summit height and a 403.2m col height, with these values giving this hill 20.7m of drop, which is sufficient for 400m Sub-Four status.
The full details for the hill are:
Group: Broad Barrow
Name: Pt. 423.9m
OS 1:50,000 map: 191
Summit Height: 423.9m (LIDAR)
Summit Grid Reference: SX 75331 76844 (LIDAR)
Col Height: 403.2m (LIDAR)
Col Grid Reference: SX 75476 76932 (LIDAR)
Drop: 20.7m (LIDAR)
For the additions, deletions and reclassifications to The Fours - The 400m Hills of England reported on Mapping Mountains since the December 2013 publication of the 1st edition of this list by Europeaklist please consult the following Change Registers:
Myrddyn Phillips and Aled Williams (June 2018)
Mapping Mountains - Hill Reclassifications - The Fours
Shovel Down (SX 658 857) – 400m Sub-Four deletion (11th reclassification)
There has been a deletion to the listing of the The Fours – The 400m Hills of England, with the summit height, col height and their locations, the drop and status of the hill derived from LIDAR analysis initially conducted by Aled Williams and subsequently by Myrddyn Phillips.
%20-%20LIDAR%20hill%203.jpg) |
| LIDAR image of Shovel Down (SX 658 857) |
The criteria for the list that this deletion applies to are:
The Fours – The 400m Hills of England. English hills at or above 400m and below 500m in height that have 30m minimum drop, accompanying the main list are three categories of sub hills, with this hill being deleted from the 400m Sub-Four category, the criteria for which are all English hills at or above 400m and below 500m in height that have 20m or more and below 30m of drop. The list is co-authored by Myrddyn Phillips and Aled Williams and the 2nd edition of the booklet containing this list was published by Mapping Mountains Publications on the 24th April 2018.
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| The Fours - The 400m Hills of England by Myrddyn Phillips and Aled Williams |
The name the hill is listed by is Shovel Down and it is adjoined to the High Willhays group of hills, which are situated in Dartmoor in the south-west of England, and it is positioned with minor roads to its north-east and south-east and the B3212 road farther to its south-east and the A382 road farther to its north-east, and has the town of Chagford to the east north-east.
When the 1st edition of the The Fours was published by Europeaklist in December 2013, this hill was listed as a 400m Sub-Four with an estimated c 21m of drop, based on a 435m summit height and an estimated c 414m col height, with the latter based on interpolation of 10m contouring between 410m - 420m.
%20-%201%2025000.jpg) |
| Extract from the Ordnance Survey 1:25,000 Explorer map |
The 435m summit height was taken from what was presumed to be a 1,427ft (434.954m) height that appeared on the Ordnance Survey 1:10,560 map. However, the last figure of the imperial height was blurred and a ? was added to the hand written notes accompanying the listing of this hill. The Ordnance Survey 1:10,000 series of maps has this figure as 1,421ft (433.126m).
%20-%201%2010000%202.jpg) |
| Extract from the Ordnance Survey 1:10,000 series of maps |
However, it was not until LIDAR became available that the details for this hill could be accurately re-assessed. The LIDAR (Light Detection & Ranging) technique produced highly accurate height data that is now freely available for much of England and Wales.
Therefore, the deletion of this hill from 400m Sub-Four status is due to LIDAR analysis, resulting in a 432.8m summit height and a 413.4m col height, with these values giving this hill 19.3m of drop, which is insufficient for it to retain its 400m Sub-Four status.
The full details for the hill are:
Group: High Willhays
Name: Shovel Down
OS 1:50,000 map: 191
Summit Height: 432.8m (LIDAR)
Summit Grid Reference: SX 65837 85738 (LIDAR)
Col Height: 413.4m (LIDAR)
Col Grid Reference: SX 66235 86023 (LIDAR)
Drop: 19.3m (LIDAR)
For the additions, deletions and reclassifications to The Fours - The 400m Hills of England reported on Mapping Mountains since the December 2013 publication of the 1st edition of this list by Europeaklist please consult the following Change Registers:
Myrddyn Phillips and Aled Williams (June 2018)
Mapping Mountains - Hill Reclassifications - The Fours
Merripit Hill (SX 657 803) – 400m Sub-Four deletion (10th reclassification)
There has been a deletion to the listing of the The Fours – The 400m Hills of England, with the summit height, col height and their locations, the drop and status of the hill derived from LIDAR analysis initially conducted by Aled Williams and subsequently by Myrddyn Phillips.
%20-%20LIDAR%20hill%201.jpg) |
| LIDAR image of Merripit Hill (SX 657 803) |
The criteria for the list that this deletion applies to are:
The Fours – The 400m Hills of England. English hills at or above 400m and below 500m in height that have 30m minimum drop, accompanying the main list are three categories of sub hills, with this hill being deleted from the 400m Sub-Four category, the criteria for which are all English hills at or above 400m and below 500m in height that have 20m or more and below 30m of drop. The list is co-authored by Myrddyn Phillips and Aled Williams and the 2nd edition of the booklet containing this list was published by Mapping Mountains Publications on the 24th April 2018.
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| The Fours - The 400m Hills of England by Myrddyn Phillips and Aled Williams |
The name the hill is listed by is Merripit Hill and it is adjoined to the High Willhays group of hills, which are situated in Dartmoor in the south-west of England, and it is positioned with the B3212 road to its south-east, and has the small community of Postbridge to the south-west.
When the list that is now known as The Fours – The 400m Hills of England was originally compiled this hill was not included in the accompanying sub list, as it was considered not to meet the criteria used for this sub category.
When the 1st edition of the The Fours was published by Europeaklist in December 2013, this hill was listed as a 400m Sub-Four with 20m of drop, based on the 449m summit spot height and the 429m col spot height that appear on the contemporary Ordnance Survey 1:25,000 Explorer map.
%20-%201%2025000.jpg) |
| Extract from the Ordnance Survey 1:25,000 Explorer map |
However, it was not until LIDAR became available that the details for this hill could be accurately re-assessed. The LIDAR (Light Detection & Ranging) technique produced highly accurate height data that is now freely available for much of England and Wales.
Therefore, the deletion of this hill from 400m Sub-Four status is due to LIDAR analysis, resulting in a 449.7m summit height and a 430.0m col height, with these values giving this hill 19.7m of drop, which is insufficient for it to retain its 400m Sub-Four status.
The full details for the hill are:
Group: High Willhays
Name: Merripit Hill
OS 1:50,000 map: 191
Summit Height: 449.7m (LIDAR)
Summit Grid Reference: SX 65782 80369 (LIDAR)
Col Height: 430.0m (LIDAR)
Col Grid Reference: SX 65888 80811 (LIDAR)
Drop: 19.7m (LIDAR)
For the additions, deletions and reclassifications to The Fours - The 400m Hills of England reported on Mapping Mountains since the December 2013 publication of the 1st edition of this list by Europeaklist please consult the following Change Registers:
Myrddyn Phillips and Aled Williams (June 2018)
Mapping Mountains - Hill Reclassifications - The Fours
High Nook (NY 120 189) – 400m Sub-Four deletion (9th reclassification)
There has been a deletion from the listing of The Fours due to LIDAR analysis conducted by Aled Williams. The Fours is the title for the list of 400m hills of England and takes in all English hills at and above 400m and below 500m in height that have a minimum 30m of drop, the list is co-authored by Myrddyn Phillips and Aled Williams and the 2nd edition of the booklet containing this list was published by Mapping Mountains Publications on the 24th April 2018.
Accompanying the main list of The Fours are three categories of sub hills, with this hill being deleted from the 400m Sub-Fours. The criteria for 400m Sub-Four status are all English hills at and above 400m and below 500m in height that have 20m and more and below 30m of drop.
Prior to LIDAR analysis this hill was listed with 21m of drop based on the 488m summit spot height that appears on the Ordnance Survey 1:25,000 Explorer map and the 467m col spot height that appears on the Ordnance Survey Interactive Coverage Map hosted on the Geograph website.
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| Extract from the Ordnance Survey 1:25,000 Explorer map |
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| Extract from the Ordnance Survey Interactive Coverage Map hosted on the Geograph website |
The name of the hill is High Nook and it is situated in the Central and Western Fells of the Lake District and is placed in Region 34, Section 34B, with its Cardinal Hill being Great Gable (NY 211 103). The hill is positioned on the north-easterly ridge that descends from Gravel Fell and has the Highnook Beck to its north-west and the Whiteoak Beck to its east.
As the summit of the hill is a part of designated open access land it can be approached from a number of directions, with a public footpath leading toward the hill from the north, however this hill can easily be combined with adjacent hills to make an extended walk.
The deletion of High Nook from 400m Sub-Four status is due to LIDAR analysis conducted by Aled Williams. The LIDAR (Light Detection & Ranging) technique produced highly accurate height data that is now freely available for much of England and Wales.
Aled’s LIDAR analysis gives the hill the following details:
High Nook
Summit Height: 486.0m
Summit Grid Reference: NY 12033 18915
Col Height: 466.1m
Col Grid Reference: NY 11922 18855
Drop: 19.9m
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| LIDAR image of High Nook |
Therefore, the 486.0m LIDAR analysis for the summit position at NY 12033 18915 and the 466.1m LIDAR analysis for the col position at NY 11922 18855 gives this hill 19.9m of drop, which is insufficient for it to retain its 400m Sub-Four status.
The full details for the hill are:
Cardinal Hill: Great Gable
Summit Height: 486.0m (LIDAR)
Name: High Nook
OS 1:50,000 map: 89
Summit Grid Reference: NY 12033 18915 (LIDAR)
Drop: 19.9m (LIDAR)
For the additions, deletions and reclassifications to The Fours reported on Mapping Mountains since the December 2013 publication of the list by Europeaklist please consult the following Change Registers:
Mapping Mountains - Hill Reclassifications - The Fours
Knott (SD 676 940) – 400m Sub-Four deletion (8th reclassification)
There has been a deletion to the listing of the The Fours – The 400m Hills of England, with the summit height, col height and their locations, the drop and status of the hill derived from LIDAR analysis initially conducted by Aled Williams and subsequently by Myrddyn Phillips.
%20-%20LIDAR%20hill%202.jpg) |
| LIDAR image of Knott (SD 676 940) |
The criteria for the list that this deletion applies to are:
The Fours – The 400m Hills of England. English hills at or above 400m and below 500m in height that have 30m minimum drop, accompanying the main list are three categories of sub hills, with this hill being deleted from the 400m Sub-Four category, the criteria for which are all English hills at or above 400m and below 500m in height that have 20m or more and below 30m of drop. The list is co-authored by Myrddyn Phillips and Aled Williams and the 2nd edition of the 2nd edition of the booklet containing this list was published by Mapping Mountains Publications on the 24th April 2018.
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| The Fours - The 400m Hills of England by Myrddyn Phillips and Aled Williams |
The name the hill is listed by is Knott and it is adjoined to the The Calf group of hills, which are situated in the Howgill Fells in the Yorkshire Dales, and it is positioned with the A683 road to its south-east and the A684 road to its south-west, and has the town of Sedbergh towards the south-west.
Prior to LIDAR analysis this hill was listed with an estimated c 20m of drop, based on a 429m summit spot height that appears on the Ordnance Survey 1:50,000 Landranger and 1:25,000 Explorer map and an estimated c 409m col height, based on interpolation of contouring between 400m - 410m, and latterly between 405m - 410m that appeared on the interactive mapping on the OS Maps website.
%20-%201%2025000.jpg) |
| Extract from the Ordnance Survey 1:25,000 Explorer map |
However, it was not until LIDAR became available that the details for this hill could be accurately re-assessed. The LIDAR (Light Detection & Ranging) technique produced highly accurate height data that is now freely available for much of England and Wales.
Therefore, the deletion of this hill from 400m Sub-Four status is due to LIDAR analysis, resulting in a 429.7m summit height and a 410.0m col height, with these values giving this hill 19.7m of drop, which is insufficient for it to be classified as a 400m Sub-Four.
The full details for the hill are:
Group: The Calf
Name: Knott
OS 1:50,000 map: 98
Summit Height: 429.7m (LIDAR)
Summit Grid Reference: SD 67644 94087 (LIDAR)
Col Height: 410.0m (LIDAR)
Col Grid Reference: SD 67446 94201 (LIDAR)
Drop: 19.7m (LIDAR)
For the additions, deletions and reclassifications to The Fours – The 400m Hills of England reported on Mapping Mountains since the December 2013 publication of the 1st edition of this list by Europeaklist please consult the following Change Registers:
Mapping Mountains - Hill Reclassifications - The Fours
Pt. 431.1m (NY 308 042)
There has been a deletion from the listing of The Fours - The 400m Hills of England due to LIDAR analysis initially conducted by Aled Williams and subsequently by Myrddyn Phillips. This list takes in all English hills at and above 400m and below 500m in height that have a minimum 30m of drop, the list is co-authored by Myrddyn Phillips and Aled Williams and the 2nd edition of the booklet containing this list was published by Mapping Mountains Publications on the 24th April 2018.
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| LIDAR image of Pt. 431.1m (NY 308 042) |
Accompanying the main list of The Fours - The 400m Hills of England are three categories of sub hills, with this hill being deleted from the 400m Sub-Fours. The criteria for which are all English hills at and above 400m and below 500m in height that have 20m and more and below 30m of drop.
Prior to LIDAR analysis this hill was listed with an estimated c 20m of drop, based on an estimated c 431m summit height based on interpolation of its uppermost 430m ring contour that appears on the Ordnance Survey 1:25,000 Explorer map and the 411m col spot height that appears on the Ordnance Survey Interactive Coverage Map hosted on the Geograph website.
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| Extract from the Ordnance Survey 1:25,000 Explorer map |
As the authors do not know an individual name for this hill either from local and/or historical research it is listed under the point (Pt. 431.1m) notation and it is situated in the Central and Western Fells of the Lake District and is placed in Region 34, Section 34B, with its Cardinal Hill being Scafell Pike (NY 215 072). The hill is positioned between Great Langdale to its north and Little Langdale to its south and has the village of Elterwater towards its east north-east.
As the summit of the hill is a part of designated open access land it can be approached from a number of directions, with access from the north-west and from the east probably being the most convenient.
However, it was not until LIDAR became available that the details for this hill could be accurately re-assessed. The LIDAR (Light Detection & Ranging) technique produced highly accurate height data that is now freely available for much of England and Wales.
Therefore, the deletion of this hill from 400m Sub-Four status is due to LIDAR analysis, resulting in a 431.1m summit height and a 412.7m col height, with these values giving this hill 18.4m of drop, which is insufficient for it to retain its 400m Sub-Four status.
The full details for the hill are:
Cardinal Hill: Scafell Pike
Name: Pt. 431.1m
OS 1:50,000 map: 90
Summit Height: 431.1m (LIDAR)
Summit Grid Reference: NY 30843 04224 (LIDAR)
Col Height: 412.7m (LIDAR)
Col Grid Reference: NY 30755 04311 (LIDAR)
Drop: 18.4m (LIDAR)
For the additions, deletions and reclassifications to The Fours reported on Mapping Mountains since the December 2013 publication of the list by Europeaklist please consult the following Change Registers:
Myrddyn Phillips and Aled Williams (May 2018)
Mapping Mountains - Hill Reclassifications - The Fours
Black Hill (SD 865 662) – Four reclassified to 400m Sub-Four (6th reclassification)
There has been a reclassification to the listing of the The Fours – The 400m Hills of England, with the summit height, col height and their locations, the drop and status of the hill derived from LIDAR analysis initially conducted by Aled Williams and subsequently by Myrddyn Phillips.
%20-%20LIDAR%20hill%201.jpg) |
| LIDAR image of Black Hill (SD 865 662) |
The criteria for the list that this reclassification applies to are:
The Fours – The 400m Hills of England. English hills at or above 400m and below 500m in height that have 30m minimum drop, accompanying the main list are three categories of sub hills, with this hill being reclassified to the 400m Sub-Four category, the criteria for which are all English hills at or above 400m and below 500m in height that have 20m or more and below 30m of drop. The list is co-authored by Myrddyn Phillips and Aled Williams and the 2nd edition of the booklet containing this list was published by Mapping Mountains Publications on the 24th April 2018.
 |
| The Fours - The 400m Hills of England by Myrddyn Phillips and Aled Williams |
The name the hill is listed by is Black Hill and it is adjoined to the Pen Ghent group of hills, which are situated in the central Pennines, and it is positioned with Malham Tarn to its east and has the small town of Settle towards its west south-west.
When the 1st edition of the The Fours was published by Europeaklist in December 2013, this hill was included as a Four and listed with an estimated c 30m of drop, based on the 468m summit spot height that appears on the Ordnance Survey 1:50,000 Landranger and 1:25,000 Explorer map and an estimated c 438m col height, based on interpolation of 10m contouring between 430m - 440m.
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| Extract from the Ordnance Survey 1:25,000 Explorer map |
However, it was not until LIDAR became available that the details for this hill could be accurately re-assessed. The LIDAR (Light Detection & Ranging) technique produced highly accurate height data that is now freely available for much of England and Wales.
Therefore, the reclassification of this hill to 400m Sub-Four status is due to LIDAR analysis, resulting in a 468.2m summit height and a 440.0m col height, with these values giving this hill 28.2m of drop, which is insufficient for it to be classified as a Four.
The full details for the hill are:
Group: Pen y Ghent
Name: Black Hill
OS 1:50,000 map: 98
Summit Height: 468.2m (LIDAR)
Summit Grid Reference: SD 86565 66233 (LIDAR)
Col Height: 440.0m (LIDAR)
Col Grid Reference: SD 86841 66040 (LIDAR)
Drop: 28.2m (LIDAR)
For the additions, deletions and reclassifications to The Fours - The 400m Hills of England reported on Mapping Mountains since the December 2013 publication of the list by Europeaklist please consult the following Change Registers:
Myrddyn Phillips and Aled Williams (May 2018)
Mapping Mountains - Hill Reclassifications - The Fours
Green Hill (NY 853 533) – 400m Sub-Four reclassified to Four (5th reclassification)
There has been a reclassification to the listing of The Fours - The 400m Hills of England due to LIDAR analysis conducted by Aled Williams. This list takes in all English hills at and above 400m and below 500m in height that have a minimum 30m of drop, the list is co-authored by Myrddyn Phillips and Aled Williams and the 2nd edition of the booklet containing this list was published by Mapping Mountains Publications on the 24th April 2018.
%20-%20LIDAR%20hill%202.jpg) |
| LIDAR image of Green Hill (NY 853 533) |
Accompanying the main list are three categories of sub hills, with this hill being reclassified from the 400m Sub-Four category. The criteria for which are all English hills at and above 400m and below 500m in height that have 20m and more and below 30m of drop.
The name the hill is listed by is Green Hill and it is situated in the Northern and Central Pennines area and is placed in Region 35, Section 35A, with its Cardinal Hill being Burnhope Seat (NY 784 375). The hill is positioned above the B 6295 road to its west and has the small community of Allendale Town to its north north-west.
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| Extract from the Ordnance Survey 1:50,000 Landranger map |
Prior to LIDAR analysis this hill was listed with 28m of drop based on the 419m summit spot height that appears on the Ordnance Survey 1:50,000 Landranger map and the 391m col spot height that appears on the Ordnance Survey 1:25,000 Explorer map.
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| Extract from the Ordnance Survey 1:25,000 Explorer map |
The summit of the hill is a part of designated open access land and can be approached via bridleways from the north and the south that lead up tracks that head on to open hillside where public footpaths then lead over the open access land.
However, it was not until LIDAR became available that the details for this hill could be accurately re-assessed. The LIDAR (Light Detection & Ranging) technique produced highly accurate height data that is now freely available for much of England and Wales.
Therefore, the reclassification of this hill from 400m Sub-Four status is due to LIDAR analysis, resulting in a 419.7m summit height and a 389.7m col height, with these values giving this hill 30.0m of drop, which is sufficient for it to be classified as a Four.
The full details for the hill are:
Group: Burnhope Seat
Name: Green Hill
OS 1:50,000 map: 87
Summit Height: 419.7m (LIDAR)
Summit Grid Reference: NY 85366 53385 (LIDAR)
Col Height: 389.7m (LIDAR)
Col Grid Reference: N 85758 53016 (LIDAR)
Drop: 30.0m (LIDAR)
For the additions, deletions and reclassifications to The Fours - The 400m Hills of England reported on Mapping Mountains since the December 2013 publication of the list by Europeaklist please consult the following Change Registers:
Mapping Mountains - Hill Reclassifications - The Fours
THIS HILL HAS SUBSEQUENTLY BEEN RECLASSIFIED TO FOUR STATUS
Cold Stones (SE 123 636)
There has been an addition to the listing of The Fours due to re-interpolation of Ordnance Survey map data coupled with studying Aerial maps and Google Street View. The Fours is the title for the list of 400m hills of England and takes in all English hills at and above 400m and below 500m in height that have a minimum 30m of drop, the list is co-authored by Myrddyn Phillips and Aled Williams and the 2nd edition of the booklet containing this list was published by Mapping Mountains Publications on the 24th April 2018.
Accompanying the main list of The Fours are three categories of sub hills, with this hill being an addition to the 400m Sub-Fours. The criteria for 400m Sub-Four status are all English hills at and above 400m and below 500m in height that have 20m or more and below 30m of drop.
The name of the hill is Cold Stones and prior to this re-interpolation of data the hill was listed with c 12m of drop, based on an uppermost 400m ring contour on the Ordnance Survey 1:25,000 Explorer map and a col spot height of 391m that appears on the Ordnance Survey Interactive Coverage Map hosted on the Geograph website.
Cold Stones once qualified for Four status and the details relating to this are given on page 41 of The Fours (Europeaklist December 2013) and are reproduced below:
Cold Stones (Section 35B)
The one that got away, or more appropriately, the one that was quarried away, as Cold Stones (SE 124 639), for which the Cardinal Hill is Whernside, was once an English 400m P30. The hill appears on the OS 1:50,000 map number 99 and with an old imperial summit height of 1,403ft (427.6m) and a col height of 391m on the OS enlarged Geograoh map. This hill once had 36.6m of drop. Its summit has now been quarried, leaving the hill with an approximate c 12m of drop.
Cold Stones is situated in the Central Pennines area and is placed in Region 35, Section 35B, with its Cardinal Hill being Whernside (SD 738 814). The hill is positioned above the B 6265 road which is to its immediate north and has the small community of Greenhow to its north-west, and as the remaining high point of the hill is a part of a working quarry permission to visit should be sought.
The re-interpolation of this hill’s map data is mainly based on contours on the Ordnance Survey 1:50,000 Landranger map and comparing these against those shown on the more detailed OS Maps which has recently replaced the OS Get-a-map, with the latter showing an uppermost 415m ring contour that doubles back on itself before closely packed contours continue downward to what is now the quarried remains of where the summit of this hill once stood. These map contours are at odds with the uppermost 400m contour shown on the Ordnance Survey 1:25,000 Explorer map, however Aerial maps and Google Street View confirm what is left of the hill is much more than the 1:25,000 map suggests.
Therefore, Cold Stones is listed with a c 417m summit height and 391m col height, with these values giving this hill c 26m of drop, which is sufficient for it to be classified as a 400m Sub-Four.
The full details for the hill are:
Cardinal Hill: Whernside
Summit Height: c 417m
Name: Cold Stones
OS 1:50,000 map: 99
Summit Grid Reference: SE 123 636
Drop: c 26m
For the additions, deletions and reclassifications to The Fours reported on Mapping Mountains since the December 2013 publication of the list by Europeaklist please consult the following Change Registers:
Myrddyn Phillips and Aled Williams (May 2018)
Mapping Mountains - Hill Reclassifications - The Fours
Reilth Top (SO 284 881) - Four reclassified to 400m Sub-Four (3rd reclassification)
Survey post for Reilth Top
There has been a reclassification to the listing of the The Fours – The 400m Hills of England, with the summit height, col height and their locations, the drop and status of the hill derived from a Trimble GeoXH 6000 survey conducted by Myrddyn Phillips and subsequent confirmation by LIDAR analysis conducted by Aled Williams.
 |
| Reilth Top (SO 284 881) |
The criteria for the list that this reclassification applies to are:
The Fours – The 400m Hills of England. English hills at or above 400m and below 500m in height that have 30m minimum drop, accompanying the main list are three categories of sub hills, with this hill reclassified to the 400m Sub-Four category, the criteria for which are all English hills at or above 400m and below 500m in height that have 20m or more and below 30m of drop. The list is co-authored by Myrddyn Phillips and Aled Williams and the 2nd edition of the booklet containing this list was published by Mapping Mountains Publications on the 24th April 2018.
 |
| The Fours - The 400m Hills of England by Myrddyn Phillips and Aled Williams |
The name the hill is listed by is Reilth Top, and it is adjoined to the Cilfaesty group of hills, which are situated in the county of Shropshire close to the Welsh border, and it is positioned encircled by minor roads with the B4385 road to its north and the A488 road to its south-east, and has the town of Bishops Castle towards the east.
When the 1st edition of the The Fours was published by Europeaklist in December 2013, this hill was included as a Four and listed with an estimated c 30m of drop, based on an estimated c 406m summit height and an estimated c 376m col height, with both heights based on interpolation of 5m contouring that appear on the contemporary Ordnance Survey 1:25,000 Explorer map.
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| Extract from the Ordnance Survey 1:25,000 Explorer map |
Its reclassification is due to a Trimble GeoXH 6000 survey, resulting in a 404.6m summit height and a 375.6m col height, with these values giving this hill 29.0m of drop.
 |
| Gathering data at the summit of Reilth Top (SO 284 881) |
However, it was not until LIDAR became available that the details for this hill could be accurately re-assessed. The LIDAR (Light Detection & Ranging) technique produced highly accurate height data that is now freely available for much of England and Wales.
%20-%20LIDAR%20hill%202.jpg) |
| LIDAR image of Reilth Top (SO 284 881) |
Therefore, the confirmation of the reclassification of this hill to 400m Sub-Four status is due to a Trimble GeoXH 6000 summit survey and subsequent LIDAR col analysis, resulting in a 404.6m summit height and a 375.4m col height, with these values giving this hill 29.2m of drop, which is sufficient for it to be classified as a Four.
The full details for the hill are:
Group: Cilfaesty
Name: Reilth Top
OS 1:50,000 map: 137
Summit Height: 404.6m (converted to OSGM15, Trimble GeoXH 6000)
Summit Grid Reference: SO 28458 88105 (Trimble GeoXH 6000)
Col Height: 375.4m (LIDAR)
Col Grid Reference: SO 28878 87840 (LIDAR)
Drop: 29.2m (Trimble GeoXH 6000 summit and LIDAR col)
For the additions, deletions and reclassifications to The Fours – The 400m Hills of England reported on Mapping Mountains since the December 2013 publication of the 1st edition of this list by Europeaklist please consult the following Change Registers:
Myrddyn Phillips and Aled Williams (April 2017)
Mapping Mountains - Hill Reclassifications - The Fours
The Cold Piece (SO 338 996) - Four reclassified to 390m Sub-Four (2nd reclassification)
Survey post for The Cold Piece
Significant Name Changes post for The Cold Piece
.jpg) |
| The Cold Piece (SO 338 996) |
The criteria for the list that this name change applies to are:
The Fours – The 400m Hills of England. English hills at or above 400m and below 500m in height that have 30m minimum drop, accompanying the main list are three categories of sub hills, with this hill now being included in the 390m Sub-Four category, the criteria for which are all English hills at or above 390m and below 400m in height that have 30m minimum drop. The list is co-authored by Myrddyn Phillips and Aled Williams, with the 1st edition of the booklet containing this list published by Europeaklist in December 2013 and by Haroldstreet in January 2014.
.jpg) |
| The Fours - The 400m Hills of England by Myrddyn Phillips and Aled Williams |
The name the hill is now listed by is The Cold Piece and this was derived from local enquiry, and it is adjoined to the Stiperstones group of hills, which are situated in the county of Shropshire close to the Welsh border, and it is positioned with minor roads to its north-east and south, and the A488 road to its north-west, and has the small community of Snailbeach towards the north-east.
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| Extract from the Ordnance Survey 1:25,000 Explorer map |
When the listing that is now known as The Fours - The 400m Hills of England was originally compiled this hill was listed as a Four with an estimated c 400m summit height, based on the uppermost ring contour that appears on the contemporary Ordnance Survey 1:50,000 Landranger and 1:25,000 Explorer map, and this is the height given the summit when the 1st edition of The Fours was published by Europeaklist in December 2013, with an accompanying note stating:
As the only absolute height found for the summit of this hill is 1,311ft (399.6m) from the OS 1:10,560 map, doubt is cast upon its qualification as an English 400m P30, but as current mapping has a small uppermost 400m ring contour the hill remains in the list for now.
.jpg) |
| The Trimble GeoXH 6000 gathering data at the summit of The Cold Piece |
However, it was not until the hill was surveyed with the Trimble GeoXH 6000 and subsequent LIDAR analysis that the details for this hill could be accurately re-assessed. The LIDAR (Light Detection & Ranging) technique produced highly accurate height data that is now freely available for much of England and Wales.
Therefore, the reclassification of this hill from Four status is due to a Trimble GeoXH 6000 survey with its col details subsequently confirmed by LIDAR analysis, resulting in a 399.5m summit height and a 341.8m col height, with these values giving this hill 57.7m of drop, and with its summit height below 400m it is sufficient for it to be classified as a 390m Sub-Four.
The full details for the hill are:
Group: Stiperstones
Name: The Cold Piece
OS 1:50,000 map: 137
Summit Height: 399.5m (converted to OSGM15, Trimble GeoXH 6000)
Summit Grid Reference: SO 33849 99695 (Trimble GeoXH 6000)
Col Height: 341.8m (LIDAR)
Col Grid Reference: SO 34228 99099 (LIDAR)
Drop: 57.7m (Trimble GeoXH 6000 summit and LIDAR col)
Myrddyn Phillips and Aled Williams (November 2014)
Mapping Mountains - Hill Reclassifications - The Fours
West Nab (SK 266 939) - 390m Double Sub-Four addition (1st reclassification)
There has been an addition to the 390m Double Sub-Four category which has recently been discovered by Ed Gradwell, with the details forwarded by his brother; George. The hill is West Nab (SK 266 939) and it is situated in the Peak District.
390m Double Sub-Fours are sought after rarities for list compilers as they fail to qualify for the main list of The Fours on two counts; height and prominence. The Fours is published by Europeaklist and also available in bagging tick list format from the Haroldstreet website.
The full details for the hill are:
Cardinal Hill: Bleaklow Head
Summit Height: 395m
Name: West Nab
OS 1:50,000 map: 110
Summit Grid Reference: SK 266 939
Drop: c 23m
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| Ed Gradwell (L) and George Gradwell (R) at the featureless highest point of West Nab (SK 266 939). Photo: David Gradwell |
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