Cefn Hirgoed is a ridge in Bridgend county borough in South Wales. The ridge extends for about 5 km east from the village of Sarn just north of Bridgend to Pen-prysg north of Pencoed. At the point where it reaches its highest elevation of 142m, are a couple of covered reservoirs. Towards the west the M4 motorway runs along the hill's southern edge.
Geology The hill is formed from relatively hard-wearing sandstones of the South Wales Lower Coal Measures with mudstone layers between the sandstones which here dip steeply northwards into the South Wales Coalfield syncline.British Geological Survey 1:50,000 map sheet 248 Pontypridd & accompanying memoir
Access Almost the entire hill is mapped as open country under the Countryside and Rights of Way Act 2000 giving a general right of access on foot to the public. It and the adjacent Hirwaun Common are also crossed by several public footpaths. A couple of minor roads, Heol Spencer and Heol Llan/Heol-Las, run north–south across the ridge.Ordnance Survey 1:25,000 scale Explorer map 151 Cardiff & Bridgend
Duel Early records refer to Robert Thomas who in 1661 was charged at the Great Sessions of Glamorgan with the murder of Edmund Thomas in a duel fought on Cefn Hirgoed on 4 February 1660.
He was outlawed and his lands and possessions taken from him. In 1669 he was pardoned with a restitution of lands and possessions, including Tregroes House in Pencoed.
References
External links images of Cefn Hirgoed and area on Geograph website