Mapping Mountains – Hill Reclassifications – The Welsh P15s

Craignant Hill (SJ 118 164) – Welsh Sub-P15 reclassified to Welsh P15

There has been a reclassification to the list of The Welsh P15s, with the summit height, bwlch height and their locations, the drop and status of the hill derived from a Trimble GeoXH 6000 survey conducted by Myrddyn Phillips. 

Craignant Hill (SJ 118 164)

The criteria for the list that this reclassification applies to are:The Welsh P15s – Welsh hills with 15m minimum drop, irrespective of their height, with an accompanying sub list entitled the Welsh Sub-P15s, with the criteria for this sub category being all Welsh hills with 14m or more and below 15m of drop.  The list is authored by Myrddyn Phillips, with the Introduction to the list appearing on Mapping Mountains on the 10^th May 2019. 

The Welsh P15s by Myrddyn Phillips

The name the hill is listed by is Craignant Hill and this was derived by local enquiry and it is adjoined to the Foel Cedig group of hills, which are situated in the southern part of North Wales (Region A, Sub-Region A3), and it is positioned encircled by minor roads, with the B4393 road farther to its north-west, the B4382 road farther to its west, the A495 road farther to its south-east and the A490 road farther to its north-east, and has the town of Llanfyllin towards the north-east.

When the listing that became known as The Welsh P15s was being compiled, this hill was included in the P14 sub list with an estimated c 14m of drop, based on the 329m 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 315m bwlch height based on interpolation of 10m contouring that appears on the Ordnance Survey 1:25,000 Explorer map. 

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

However, it was not until this hill was surveyed with the Trimble GeoXH 6000 that an accurate height for both its summit and connecting bwlch, and hence its drop could be ascertained. 

The Trimble GeoXH 6000 gathering data at the bwlch of Craignant Hill

The Trimble GeoXH 6000 gathering data at the summit of Craignant Hill

Therefore, the reclassification of this hill from Welsh Sub-P15 status is due to a Trimble GeoXH 6000 survey, resulting in a 329.3m summit height and a 311.4m bwlch height, with these values giving this hill 18.0m of drop, which is sufficient for it to be included in the main list of The Welsh P15s. 

 

The full details for the hill are: 

Group:  Foel Cedig 

Name:  Craignant Hill 

OS 1:50,000 map:  125

Summit Height:  329.3m (converted to OSGM15)                                                           

Summit Grid Reference:  SJ 11893 16416 

Bwlch Height:  311.4m (converted to OSGM15) 

Bwlch Grid Reference:  SJ 11967 16505 

Drop:  18.0 

 

Myrddyn Phillips (August 2022)