The cairn is located a little to the east of the high point of Garreg Fawr. It’s not shown on the OS map.
Coflein description:
A grass-covered, circular cairn measuring approximately 6m in diameter and 0.3m in height. It is built using tightly-packed, small to medium sub-round stones. It is possible that the cairn had a funerary function, but it could equally be a small hut circle. The AP mapping does show an enclosure and hut circle at this location. However, no evidence of an enclosure could be seen on the ground. 2004.02.12/OAN/PJS