A round cairn lies on a gentle N facing slope, on the north side of Mynydd-y-glog.
Surrounded by shake holes, it measures 10m (E-W) by 9m, its oval plan probably due to the removal of material to the east edge from the centre which is slightly dished. It is composed of loose sandstone rubble though the perimeter is consolidated with grass and heather. The cairn rises to a maximum height of 0.5m on the north side.

David Leighton, RCAHMW, 20 March 2001