Pared y Cefn Hir (SH 665 152) – Sub-Trichant addition
There has been an addition to the list of Y Trichant – The 300m Hills of Wales, with the summit height, bwlch height and their locations, the drop and status of the hill derived from LIDAR analysis conducted by Myrddyn Phillips.
Pared y Cefn Hir (SH 665 152) |
Y Trichant
– The 300m Hills of Wales – Welsh
hills at or above 300m and below 400m in height that have 30m minimum drop, with an accompanying sub list entitled the
Sub-Trichant, with the criteria for this sub category being all Welsh hills at
or above 300m and below 400m in height with 20m or more and below 30m of
drop. The list is authored by Myrddyn Phillips with the
Introduction to the list and the renaming of it appearing on Mapping Mountains
on the 13th May 2017, and the Introduction to the Mapping Mountains
publication of the list appearing on the 1st January 2022.
Y Trichant - The 300m Hills of Wales by Myrddyn Phillips |
When the original 300m height band of Welsh P30 hills were published on Geoff Crowder’s v-g.me website, this hill was not included in the Hills to be surveyed sub list, as it was considered not to meet the criteria then used for this sub category.
After the sub list was standardised, and interpolated heights and drop values also included the details for this hill were re-evaluated and it was listed with an estimated c 15m of drop, based on an estimated c 374m summit height and an estimated c 359m bwlch height, with both heights based on interpolation of 10m contouring that appear on the Ordnance Survey 1:25,000 Explorer map.
Extract from the Ordnance Survey 1:25,000 Explorer map |
LIDAR image of Pared y Cefn Hir (SH 665 152) |
The full details for the hill are:
Group: Cadair Idris
Name: Pared y Cefn Hir
OS 1:50,000 map: 124
Summit Height: 379.0m (LIDAR)
Summit Grid Reference: SH 66579 15214 (LIDAR)
Bwlch Height: 358.4m (LIDAR)
Bwlch Grid Reference: SH 66538 15146 (LIDAR)
Drop: 20.5m (LIDAR)
Myrddyn Phillips (March
2022)
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