Wednesday, 17 August 2016

Mapping Mountains – Significant Name Changes – Y Pedwarau

Grugfryn (SJ 248 356)

This is the twenty sixth post under the heading of Significant Name Changes, and the following details are in respect of a hill that was surveyed with the Trimble GeoXH 6000 on the 17th July 2015.

The hill is part of Y Berwyn, which is an extensive group of hills situated in the south-eastern part of north Wales.  The hill is positioned between the small communities of Craignant and Selattyn to its south-east, Llwynmawr to its north-west and Bronygarth to its north-east.

Grugfryn (SJ 248 356)

The hill appeared in the 400m P30 list on Geoff Crowder’s website under the name Plas-crogen Wood.  This listing of hills is now co-authored with Aled Williams and known as Y Pedwarau.  

Plas-crogen Wood

During my early hill listing I thought it appropriate to either invent a name for a hill, or use a name that appeared near to the summit of the hill on Ordnance Survey maps of the day.  My preference was to use farm names and put Pen, Bryn or Moel in front of them.  This is not a practice that I now advocate as with a little research either conducted locally or historically an appropriate name for the hill can usually be found.  In this instance the name used was that of a wood that is positioned on the summit area of the hill.  Hills being listed by names that are directly associated with a wood that appears on the summit is not uncommon and is acceptable, unless a name for the hill itself can be found either from local enquiry or from historical documentation.   

Since publication of these P30 lists on Geoff Crowder’s website there have been a number of Ordnance Survey maps made available online, some of these are historical such as the series of Six-Inch maps on the National Library of Scotland website, whilst others are current and digitally updated such as the enlarged map on the Geograph website.  One of the historical maps now available is the Ordnance Survey One-Inch ‘Old Series’ map which was the first map made publicly available by the Ordnance Survey.

The name this hill is now listed by in Y Pedwarau (Europeaklist and Haroldstreet 2013) is Grugfryn, and this was derived from the Ordnance Survey One-Inch ‘Old Series’ map.

Extract from the Ordnance Survey One-Inch 'Old Series' map

The full details for the hill are:

Group:  Y Berwyn

Name:  Grugfryn

Previously Listed Name:  Plas-crogen Wood
Summit Height:  404.1m (converted to OSGM15)

OS 1:50,000 map:  126

Summit Grid Reference:  SJ 24842 35652 
Drop:  42.2m

Myrddyn Phillips and Aled Williams (August 2016)

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