A series of stone quarrying pits on the south-eastern tip of Craig yr Allt. Craig yr Allt is a prominent ridge to the south-west of Caerphilly, above the Afon Taff. Quarrying pits are also evident at the south-western tip of the ridge.

Photographed during aerial reconnaissance by RCAHMW on 12th Nov 2008.
L. Osborne, 8th Feb 2012.