Fundamental Benchmark Details & GPS Waypoint

Twmbarlwm 419m (1375ft)

Summit Feature: Second summit of same map height at ST 243 926. Also recorded on OS maps in the unabbreviated form Twyn Barllwm.
Classification: Hill Trigpoint, Pedwar, P30 Tump.
OS Grid Ref: ST242926 (10 figure Grid Ref: ST2420092600).
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 - Neath to Chepstow (OS Maps 1:50k 171. 1:25k 152.)
Latitude: 51.627092, Longitude: -3.096455, Height: 419 metres (1375 feet)
Prominence: 48 metres (157 feet)
Unique Waypoint POI Name: 0419.- (DoBIH Hill ID: 15634)

Associated Trigpoint:
  TP6050 'Twmbarlwm' Grid Ref: ST2419792602 Separation: 97m from Hill grid ref.

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

Data courtesy of Myrddyn Phillips and Aled Williams

Selected mapping: Google or Bing / Ordnance Survey

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

Twmbarlwm List & GPS Waypoints:

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Member's Comments on Twmbarlwm...

Member's Grid References for Twmbarlwm...

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Twmbarlwm's Nearby Routes...

South Wales 100 ml (hillybilly)


Twmbarlwm has been climbed by...

Adrian Anton Carole glynspencer Griefmiester hillybilly jackieabz55 Jim.Fothergill jonglew kasharic79 ngthack Plurpingo rhayader_wanderer rhw russ russie Salknits Sam stevent0809 Ted Richards tgrs THE KOSCIOWS Tony J yt


Total = 1 Fundamental Benchmark
* The waypoint data in italics is only accurate to a 6 fig grid reference. Click here to learn how to help improve it.
Data courtesy of Myrddyn Phillips and Aled Williams