There are three levels located on the north side of Tufts Brook, approximately 200 to 400 yards east of the Bream–Lydney road. These were reopened around 2000 by the Gloucester Speleological Society.
1885 Ketlay, Glenday & Short
Publications (2)
(1927); BGS - Mineral Resources of GB (c1920s) Vol X 2nd Ed - Iron Ores - Hematites of Forest of Dean, South Wales; 115 pages
Oldham, Tony (1998); Mines of the Forest of Dean; 86 pages