A copper mine adit located within the Clogwyn copper mine (NPRN 33768). The adit remains open and can be seen to extend for at least 20m into the hillside. The roof has slate lintels lining it and the opening is 2m wide by 1.7m high. A spoil heap extends downslope to the north-west and is 10m long by 7m wide and 5m high. There is a small shelter surviving on the spoil which measures up to 1m high. P.J. Schofield, OANorth, 30th January 2008