A much disturbed round cairn lies just inside a now abandoned enclosure (a post-medieval intake), defined by a massive wall-bank and ditch. It lies on level ground to the east of a local summit on the southern slopes of Mynydd-y-glog.
The stony mound is overgrown with grasses and rushes. It measures 12m in diameter and 0.6m high. The centre of the cairn has been hollowed out from the north-east side and an accumulation of stone on the NW side is probably robbing spoil.
Given the mass of cairn material remaining it appears unlikely to have been quarried for building the nearby (ditched) wall though the wall-builders were the likely robbers.

David Leighton, RCAHMW, 19 March 2001