A complex of ruined buildings is located in the deeply incised cutting of Nant Pennig, a tributary of the Afon Taf. They are strung out over a distance of some 550m between elevations of 405m and 470m OD. They mostly comprise long huts, more substantial buildings, and small number of stone piles which are perhaps collapsed small buildings.
See individual site records.

David Leighton, RCAHMW, 10 September 2008