Nant y Frân (SH 389 923)
There has been a Significant Name Change to a hill that is listed in The Welsh P15s, with the summit height, bwlch height and their locations, the drop and status of the hill derived from LIDAR analysis conducted by Myrddyn Phillips.
LIDAR image of Nant y Frân (SH 389 923) |
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 10th
May 2019.
The Welsh P15s by Myrddyn Phillips |
When the listing that became known as The Welsh P15s was being compiled, this hill was listed under the point (Pt. 49m) notation with 15m of drop, based on the 49m summit spot height that appears on the Ordnance Survey 1:25,000 Explorer map and the 34m bwlch spot height that appeared on the Ordnance Survey Vector Map Local hosted on the Geograph website and which was entitled the Interactive Coverage Map.
Extract from the Ordnance Survey 1:25,000 Explorer map |
Extract from the Tithe map |
Extract from the apportionments |
The full details for the hill are:
Group: Ynys Môn
Name: Nant y Frân
Previously Listed Name: Pt. 49m
OS 1:50,000 map: 114
Summit Height: 49.4m (LIDAR)
Summit Grid Reference: SH 38928 92356 (LIDAR)
Bwlch Height: 34.7m (LIDAR)
Bwlch Grid Reference: SH 38859 92572 (LIDAR)
Drop: 14.7m (LIDAR)
Myrddyn Phillips (August
2021)
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