Part of Graig Colliery & Brick Works (nprn 507795). Building at coal level (nprn 507381), the purpose of which is not clear. Shown on 1st ed county OS map when the mine was working, but was disused by the time of the 2nd ed. It stands north-west of and not in alignment with the mine entrance and between former tramways. Mainly of field stone, with some bricks scattered about, 2m square internal dimensions, and walls only 0.2m high.
Recorded as part of Uplands Initiative Survey. R Hayman, H&H, 16/09/2009.