Pen Twyn Mawr

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Pen Twyn Mawr
Pen y Gadair Fawr from the summit of Pen Twyn Mawr
Highest point
Elevation658 m (2,159 ft)
Prominence17 m (56 ft)
Parent peakPen y Gadair Fawr
Language of nameWelsh
LocationBlack Mountains, South Wales
OS gridSO241266
Topo mapOS Landranger 161

Pen Twyn Mawr is a top of Pen y Gadair Fawr in the Black Mountains in south-eastern Wales. It lies on one of the many south ridges of Waun Fach.

The summit is marked by a pile of stones in an area of sandy soil and heather. Pen y Gadair Fawr is to the north, Chwarel y Fan to the east and Pen Allt-mawr to the west.[1]


  1. ^ Nuttall, John & Anne (1999). The Mountains of England & Wales - Volume 1: Wales (2nd edition ed.). Milnthorpe, Cumbria: Cicerone. ISBN 1-85284-304-7.

External links[edit]

Coordinates: 51°57′47″N 3°08′38″W / 51.96292°N 3.14392°W / 51.96292; -3.14392