A ploughed-down mound, 12.2m in diameter and 0.8m high. Excavation in 1940 and 1958, demonstrated that the monument was structurally complex, and had been preceded by early Bronze Age occupation.
(Source: OS495 card: ST17NW1)
The mound has been associated with the Battle of St Fagan's (nprn 307776).
J.Wiles, RCAHMW, 05.02.2003.

Photographed during aerial reconnaissance by RCAHMW on 8th Dec 2010.