Disgrifiad
Ringwork in Coed y Cwm, Glamorgan; measured plan and profile, plan surveyed by W.E. Griffiths and W.G. Thomas, 7th March 1963, profile surveyed by C.J. Spurgeon and H.J. Thomas 23rd February 1981, both re-drawn by C.J. Spurgeon 9th June 1981.
Cychwynnwr
William E. Griffiths, Mr C. Jack Spurgeon, W. Gwyn Thomas, Howard J. Thomas, RCAHMW
