1. Limestone quarries developed to provide stone for Blaenavon Ironworks. DJP 07/10/94. (See nprn 91634 for balance shaft)
2. Large quarries cut into steep hillside overlooking the Tumble. Approx 300m long, 50-100m wide and 50m deep with vertical cut sides to S. Two types of rock, that to upper half in seams.
Site visited, 2000.06.15/H&H/RH.
3. Several phases of quarrying. To W, adjacent to footpath, is a face approx 40m long and 15-20m high with spoil and rubble in front Site visited, 2000.06.15/H&H/WH.
4. A coastal quarry serving the trade over to Devon and Cornwall via the partially extant slides down to the beach. Operative in the C17-20.
(Site entry by Stephen Hughes for Buildings of Glamorgan, John Newman, 1995)
J Hill 28.10.2003