Cefn yr Ystrad 2010

A neglected mountain with impressive views.

Cefn yr Ystrad is the only mountain (Hewitt and Nuttall) in the southeastern branch of the Brecon Beacons. It sits at the start of the branch, and is one of the mountains whose summit is underlain by the Northern Outcrop of limestone (the outcrop also underlays the summits at the western end of the Black Mountain, and a discontinuous underlay appears on Pen Cerrig-calch in the Black Mountains). Due to its lack of proper path, and the severe damage caused by quarrying, the mountain is rarely visited. Our route follows the first part of the route in the Nuttalls guide.