A coal mining complex situated on a platform ( 14m x 32m ) cut into the south facing slope in the bottom of the valley of the Nant y Melyn.
Comprising a corrugated iron shed, 5m x 7m x 3m high, with a single pitch roof containing the remains of a winch and compressed air equipment. There are the remains of a dram way, mining tubs and tipping gear together with 12m of track and a pile of at least 10 rail lines.

J. Winterburn, John Winterburn Archaeological Services, Sept, 2005.