Tregynon Moat is a slightly banked, rectangular platform, measuring c.38m by 25m, and defined by a mostly dry moat, measuring 62m by 48m, and embanked to the north-east and south-east. It was possibly fed via a leat from the south-west on the line of the present Coccos Mill (Nprn41140) leat.

(source Os495card; SO09NE1)
RCAHMW AP955046/55
J.Wiles 08.08.02