One of the small private levels on the edge of the South Wales Coalfeild operated up until 2003 it had a fairly complete set of topside buildings but they were demolished in late 2007 to back fill the mine adits as the owner was concerend that visitors mught be stupid enough to enter the mine which was known to have developed blackdamp not far from the surface after ventilation stopped, So i was glad i got to see it in time. I didnt go in with or without a canary.