A pair of ruinous quarry buildings associated with the southernmost Bryn-mawr quarry (NPRN 505778). There is a surviving rectangular quarry building measuring 6m long by 4m wide and standing to 1.4m high, and a shelter measuring 4m by 3m with a stone-capped and lined subterranean structure (3m by 0.5m) to the south. The site is marked on both the OS 1st Edition and current mapping. P.J. Schofield, OANorth, 13th June 2007
