A round cairn, 6.0m in diameter and 0.3m high, having kerbing blocks exposed on its NW perimeter.
Immediately to the NW lies a possible standing stone (NPRN 307663), with a ring cairn and a second round cairn (NPRN's307660 & 307661) continuing this alignment further to the NW.

Site number 369 in: RCAHMW, 1976, An Inventory of the Ancient Monuments in Glamorgan, Volume I: Pre-Norman, Part 1, The Stone and Bronze Ages. Cardiff, HMSO. Page 97.

T. Driver, RCAHMW, 8th September 2008.