Skip to content

Fundamental Benchmark Details & GPS Waypoint

Pen Twyn 476.6m (1563ft)

Summit Feature: Name taken from OS One-Inch 'Old Series' sheet.
Classification: Befour, Britfour, Pedwar, P30 Tump.
OS Grid Ref: SN857463 (10 figure Grid Ref: SN8579846301).
UK Area: 31 - South-West Wales (OS Maps 1:50k 147. 1:25k 187.)
Latitude: 52.10322, Longitude: -3.66877, Height: 476.6 metres (1563 feet)
Prominence: 45.1 metres (148 feet)
Unique Waypoint POI Name: 0477.- (DoBIH Hill ID: 14884)

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

Data courtesy of Myrddyn Phillips and Aled Williams

Selected mapping: Google or Bing / Ordnance Survey

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

Banc y Ddinas List & GPS Waypoints:

Climbed Pen Twyn? Log in to tick it off...

Member's Comments on Pen Twyn...


Pen Twyn has been climbed by...

Adrian Anton Carole Chalky1953 Denise iaindbrown ManofKernow rhw underhill


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


Follow us...