Fundamental Benchmark Details & GPS Waypoint

Gilwern Hill 441m (1447ft)

Summit Feature: Summit height from 1446ft (440.75m) levelled height on 1:10,560 map and from OS Trig Database. Also recorded on OS maps as Gelli Hill.
Classification: Hill Trigpoint, Clem, Hump, Pedwar, Sub-marilyn, P30 Tump.
OS Grid Ref: SO098582 (10 figure Grid Ref: SO0989758291).
The original GR data for this hill was only accurate to a 6 figure grid reference (c.a 100m).
We have used additional user / trigpoint data to bring it up to 10 figures.
UK Area: 31 - Welshpool to Hay-on-Wye (OS Maps 1:50k 147. 1:25k 200E.)
Latitude: 52.215452, Longitude: -3.320248, Height: 441 metres (1447 feet)
Prominence: 148 metres (486 feet)
Unique Waypoint POI Name: 0441.p (DoBIH Hill ID: 2198)

Associated Trigpoint:
  TP2669 'Gilwern Hill' Grid Ref: SO0989258291 Separation: 129m from Hill grid ref.

External Links for Gilwern Hill:
-GeoHack link... -OS Map Bing link... -Google Map link... -Geograph link... -Gilwern Hill on hill-bagging.co.uk... -Gilwern Hill on trigpointinguk.com...
Data courtesy of Myrddyn Phillips and Aled Williams