Saturday, 26 March 2016

Mapping Mountains – Hill Reclassifications – Y Pedwarau


Craig y Garreg Lwyd (SH 730 427) - Pedwar reclassified to 400m Sub-Pedwar  

There has been another reclassification of a Pedwar to a 400m Sub-Pedwar through a survey with the Trimble GeoXH 6000, the second within three days of surveying.  The hill was listed as a Pedwar as it has a 478m spot height at the summit and a 443m spot height at the bwlch on the Ordnance Survey enlarged map hosted on the Geograph website, with these values giving the hill 35m of drop.  This hill was also surveyed by Myrddyn Phillips using a basic levelling method on the 6th January 2004 which resulted in a drop of 99ft (30.2m).

The hill is situated in the land between the high Moelwynion and the wild surrounds of Y Migneint with its Cardinal Hill being Graig Goch, and is positioned to the north of the B 4391 as it makes its way eastward from Llan Ffestiniog to the A 4212 and Llyn Celyn with Y Bala beyond.

The name of the hill is Craig y Garreg Lwyd and it can be accessed from a track either to its south-west, south or south-east.  However, the hills surrounding Craig y Garreg Lwyd are well worth visiting and so combining it with its near neighbours is worthwhile.

This now brings the overall total for the Y Pedwarau to 446 hills with five additions, and six reclassifications to 400m Sub-Pedwar status since publication of the list by Europeaklist in May 2013.  The hill will be taken out of the main list and added to the 400m Sub-Pedwar list in forthcoming publications.  The list of Pedwar hills is available from the Haroldstreet website.


The full details for the hill are:

Cardinal Hill:  Graig Goch

Summit Height:  473.4m (converted to OSGM15)

Name:  Craig y Garreg Lwyd

OS 1:50,000 map:  124

Summit Grid Reference:  SH 73044 42742

Drop:  29.9m (converted to OSGM15)


The list of additions and reclassifications from the Pedwar list since the 1st edition of Y Pedwarau was published by Europeaklist are as follows:


PEDWAR ADDITIONS








PEDWAR RECLASSIFICATIONS









Craig y Garreg Lwyd (SH 730 427) now reclassified to a 400m Sub-Pedwar

For details on the survey that reclassified this hill from Pedwar to 400m Sub-Pedwar status please click {here}

Myrddyn Phillips and Aled Williams (March 2016)







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