Disgrifiad
North Hill Tor, Glamorgan; measured drawing showing plan and profile view, plan surveyed by W.E. Griffiths and D.J. Roberts, 23rd April 1968, profile surveyed by C.J. Spurgeon and H.J. Thomas, 6th March 1981, and drawn by C.J. Spurgeon, 12th June 1981.
Cychwynnwr
William E. Griffiths, Dylan J. Roberts, Mr C. Jack Spurgeon, Howard J. Thomas, RCAHMW
