A robbed round cairn, with traces of its cist still visible, lies on the west slope of Fan Llia, on a slight levelling of the ground on an otherwise moderately steep slope.
The cairn measures 5.8m (NW-SE) by 5m and 0.3m high. A central hollow measuring 1.4m across was probably the site of a cist. Loose stones, probably robbing spoil, lie at the south-west edge of the cairn. They include a slab 0.9m long, at least 0.5m wide (embedded) and 0.12m thick, perhaps the capstone.
The cairn is a stony mound overgrown with light vegetation. Rushes grow in the central hollow.

ex inf. Andrew Davies, Pontypool

David Leighton, RCAHMW, 16 October 2009