Located due west of the summit of Esgair Pen-y-Garreg, not far from Rhayader, Coflein has the following to say regarding this small, remote funerary cairn:-
‘Approx. 4m diam x 0.3m high. Hollow at centre (NH 1980). Crugyn Gwyddel translates as ‘Small cairn / mound of the Irish person’. Cairn appears to been located on former cairn base, approx. 8m diam x 1.5m high. Poss. beacon site (RSJ 2000).‘