The Yorkley Coal was worked from three shafts and a cross-measure level.
- 1855-1865 J.H. Warman
- 1880 J. Prothero
- 1890-1895 Dean Forest Navigation Coal & Fuel Co.
Publications (2)
- Oldham, Tony (1998); Mines of the Forest of Dean; 86 pages
- Trotter; p. 43.


