No. 1 Shaft is located at an altitude of 312 feet. The colliery closed in 1959 following the exhaustion of the Coleford High Delf seam, which was encountered at a depth of 273 feet and measured 4 feet 3 inches thick.
- 1908-1946 Lydney & Crumpmeadow Collieries Co. Ltd
- 1947-1959 National Coal Board
Publications (1)
- Oldham, Tony (1998); Mines of the Forest of Dean; 86 pages