Concrete platform 5 x 4m, cut into steep hillside, with brick and concrete retaining wall to S, which contains the entrance to a concrete-lined tunnel or chute, 3m wide and 2m high. To its R, doorway to brick and concrete steps leading to upper level with further structures (NPRN293146-293150). To lower (N) end of building, brick sills and walls up to 4m high, and brick steps leading to outside.
Recorded as part of Uplands Initiative Survey. W B Horton, H&H, 03/01/2007.