Friday, 28 October 2016

Mapping Mountains – Significant Name Changes – Y Pedwarau


Fawnog Gnapiog (SN 930 761)

This is the fifty fifth 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 12th March 2016.

The hill is part of the group of hills associated with Pegwn Mawr, this range of hills is situated in the north-eastern part of Mid and West Wales.  The hill is positioned between the small community of Llangurig to the north north-west and the town of Rhaeadr Gwy (Rhayader) to the south south-east.

The Trimble GeoXH 6000 gathering data at the summit of Fawnog Gnapiog

The hill appeared in the 400m P30 list on Geoff Crowder’s v-g.me website under the name of Bryn Titli, which is a name that appeared close to the summit of the hill on Ordnance Survey 1:50,000 Landranger and 1:25,000 Explorer maps of the day.  This listing of hills is now co-authored with Aled Williams and known as Y Pedwarau, and the height of the hill had been previously surveyed with a Leica 530 and the drop of the hill was confirmed by the survey with the Trimble. 


Bryn Titli
    497m
    SN930762
    136/147
  214
   

During my early hill listing I paid little regard to name placement on a map, or the meaning of names and to what feature the name was appropriately applied to.  Therefore I prioritised names for listing purposes that I now understand are inappropriate, and Bryn Titli is such an example as this name has been consistently applied by the Ordnance Survey to land taking in a 492.7m (converted to OSGM15) high hill at SN 93383 75719 whose summit is positioned 500 metres to the south-east, whilst a number of different scaled Ordnance Survey maps position the name Fawnog Gnapiog as applicable to land extending to the south south-west from this hill’s summit and importantly this land is a part of this hill.  

Extract from the Ordnance Survey series of Six-Inch maps

Extract from the Ordnance Survey historical 1:25,000 map

Extract from the current Ordnance Survey 1:25,000 Explorer map

Therefore the name this hill is now listed by in Y Pedwarau (Europeaklist May 2013 and Haroldstreet January 2014) is Fawnog Gnapiog and this was derived from a number of different scaled Ordnance Survey maps that place this name applicable to land extending from the summit of this hill.


The full details for the hill are:

Group:  Pegwn Mawr

Name:  Fawnog Gnapiog

Previously Listed Name:  Bryn Titli
 
Summit Height:  495.7m (converted to OSGM15)

OS 1:50,000 map:  136, 147

Summit Grid Reference:  SN 93038 76169 

Drop:  59.0m





Myrddyn Phillips and Aled Williams (October 2016)









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