Three large ramparts and ditches rise one above the other to form a very impressive defence on the NE side of this promontory enclosure, which otherwise rests on the crags and scarps of Corn y fan. There is an entrance to the NE, between the ramparts and the crags, and a quarry ditch within the innermost rampart. The interior, c.48m by 8.0-16m and innocent of traces of occupation, seems small in relation to the scale and extent of the defences. The site is significant for its visually dominant position.

(Source: OS 495 card; SN93NE1)

J.Wiles, RCAHMW, 25.04.2002.