Set about the hillslopes below Twyn-y-Gaer defended enclosure (NPRN 305069) are 16 pillow mounds. One is L-shaped, one circular, the remainder rectalinear. All but the smallest are ditched. The circular mound was previously recorded as a cairn. A small building platform is associated with the warren.

(source Os495card; SN92NE7)

Set within the area of a suggested field system (NPRN 401837).

J.Wiles 15.11.04

2. Built as circular mounds, crosses, more common `cigar shaped? oblong mounds or more unusual L-shapes, such warrens were numerous in the hills of Glamorgan, Powys and elsewhere. Providing an essential rural income in recent centuries from the sale of pelts for the fur trade, as well as a ready source of food from the meat. (Text from the forthcoming 'Historic Wales from the Air' RCAHMW, 2012).

Photographed during aerial reconnaissance by RCHAMW on the 6th Feb 2009.