Sunday, 28 May 2017

Mapping Mountains – Hill Reclassifications – Y Trechol – The Dominant Hills of Wales

Pt. 119m (SH 721 004) – Lesser Dominant reclassified to Dominant

There has been a reclassification to the listing of Y Trechol – The Dominant Hills of Wales; this has resulted in this hill being reclassified from a Lesser Welsh Dominant to a Dominant hill.  With the criteria for inclusion to the Dominant list being all Welsh P30 hills whose prominence equal or exceed half that of their absolute height.

The details relating to this hill’s inclusion as a Dominant hill are retrospective as it appeared in the Tarennydd group of hills when published on the Mapping Mountains site on the 3rd December 2016.

Prior to this hill’s inclusion as a Dominant hill it was listed as a Lesser Welsh Dominant hill with 48.25% Dominance based on an estimated c 114m summit height and a 59m bwlch spot height that appears on the Ordnance Survey 1:50,000 Landranger and 1:25,000 Explorer maps, which gave this hill c 55m of drop.

The hill is listed in the Tarennydd group and is placed in the Region of North Wales (Region A, Sub-Region A3) with its Cardinal Hill being Tarren y Gesail (SH 710 058), and it is situated between the A 493 road to its north and the Afon Dyfi (River Dovey) and the A 487 road to its south with the town of Machynlleth to its east north-east.

There are tracks leading from the valley up the hill to the north and east of the summit, but as the hill is not situated on a part of designated open access land permission to visit should be sought.

The hill is being listed under the point (Pt. 119m) notation as I do not know an appropriate name for it either from local enquiry or historical research, and it qualifies for Dominant status based on the 119m summit spot height that appears on the Ordnance Survey enlarged mapping hosted on the Geograph website, this when coupled with its 59m bwlch spot height gives the hill 60m of drop and 50.42% Dominance.


The full details for the hill are:

Group:  Tarennydd

Name:  Pt. 119m

Dominance:  50.42%

OS 1:50,000 map:  135

Summit Grid Reference:  SH 72136 00406

Summit Height:  119m

Drop Summit to Bwlch:  60m

Drop Bwlch to ODN:  59m 

Myrddyn Phillips (May 2017)

No comments: