Pen Twyn Glas

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Pen Twyn Glas
Pen Twyn Glas, Mynydd Llysiau and Waun Fach from Pen Allt-mawr
Highest point
Elevation 646 m (2,119 ft)
Prominence 21 m (69 ft)
Parent peak Pen Allt-mawr
Listing sub Hewitt, Nuttall
Location Black Mountains, South Wales
OS grid SO215300
Topo map OS Landranger 161
Not to be confused with Mynydd Twyn-glas near Cwmbran.

Pen Twyn Glas is a top of Pen Allt-mawr in the Black Mountains in south-eastern Wales. It lies in between Pen Allt-mawr and Mynydd Llysiau.

The summit is merely a grassy bump on the ridge marked by a pile of stones.[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