Site associated with Tirherbert Colliery, 1914-58 (nprn 507791). Probable entrance to underground workings, in the form of a broad cutting 9m wide, 2m high, and 5m long. It faces N, just below which is a small spoil tip (nprn 507633).
Recorded as part of Uplands Initiative Survey. R Hayman, H&H, 22/10/2009.