Fundamental Benchmark Details & GPS Waypoint

Banc y Celyn 472m (1548ft)

Summit Feature: Also recorded on OS maps as Mynydd Du. Drop value based on summit trig and col spot height data with hill officially listed as sub-HuMP based on summit trig and levelled height on col area.
Classification: Hill Trigpoint, Clem, Hump, Pedwar, P30 Tump.
OS Grid Ref: SO047464 (10 figure Grid Ref: SO0476946430).
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: 32 - Llandovery to Monmouth (OS Maps 1:50k 147. 1:25k 188.)
Latitude: 52.1079767, Longitude: -3.3919259, Height: 472 metres (1548 feet)
Prominence: 100 metres (328 feet)
Unique Waypoint POI Name: 0472.p (DoBIH Hill ID: 7661)

Associated Trigpoint:
  TP0244 'Banc Y Celyn' Grid Ref: SO0476946430 Separation: 75m from Hill grid ref.

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