On a mound 100 yards south of cobbled bridleway, 600 yards west from the end of Heads Lane.
DEMOLISHED All surface features have been demolished above ground level but the two timber lined ventilation shafts are still visible, below ground level but they are blocked after a few inches. The FSM pipe is also visible and it is possible to see that the room below has not been filled. There are stone steps up the mound and a pile of old metal fence posts on top.
Opened in 1964 and closed in 1991.