No 1. Pit
1949-60 EJ Hopkins and WR Thomas
1960 EJ Hopkins
1961 Blaen Grenig Colliery Ltd
No 2. Pit
1962-70 Coal Sales Ltd
1970-87 Gwndwngwyn Colliery Ltd
1987-95 Europe energy (mining) Ltd
Blaen Grenig
1995-1996 South Wales Anthracite Mining Co
The mine worked the Red seam.
External Links
Publications (2)
- Booth, A.J.; Industrial Railway Society (1995); Small Mines of South Wales, Volume 2; pp. 8-9
- Cooke, R.A.; Lightmoor Press (2018); Gazeteer of Coal mines in South Wales; pp. 135
