Fundamental Benchmark Details & GPS Waypoint

Blaen Llywernog 401m (1315ft)

Classification: Pedwar, P30 Tump.
OS Grid Ref: SN729815 (10 figure Grid Ref: SN7296581505).
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 - Aberystwyth to Welshpool (OS Maps 1:50k 135. 1:25k 213.)
Latitude: 52.41675, Longitude: -3.8693, Height: 401 metres (1315 feet)
Prominence: 37 metres (121 feet)
Unique Waypoint POI Name: 0401.- (DoBIH Hill ID: 15027)

External Links for Blaen Llywernog:
-GeoHack link... -OS Map Bing link... -Google Map link... -Geograph link... -Blaen Llywernog on

Data courtesy of Myrddyn Phillips and Aled Williams

Selected mapping: Google or Bing / Ordnance Survey

:Fundamental Benchmark | :Nearby Hill | :Nearby Trigpoint | : mouseover

Mynydd Ponterwyd List & GPS Waypoints:

Climbed Blaen Llywernog? Log in to tick it off...

  • '0401.-' SN729815 Blaen Llywernog (401m, p37)

Member's Comments on Blaen Llywernog...

Member's Grid References for Blaen Llywernog...

  • rhayader_wanderer submitted the following Grid Ref...
  • SN-72965-81505


Blaen Llywernog has been climbed by...

Anton Carole Chalky1953 rhw


Total = 1 Fundamental Benchmark
Data courtesy of Myrddyn Phillips and Aled Williams


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