Brick building 8 x 5m. The walls are 3m high, the gable ends with steel-framed doorways. The roof no long survives. Concrete floor with channel or gulley around 3 sides. Some bricks are stamped 'Ebbw Vale'. Built on top of platform within quarry (NPRN293131).
Recorded as part of Uplands Initiative Survey. W B Horton, H&H, 12/12/2006.
