In a triangular compound on the North side of a public footpath 75 yards East of Holly Grove Road.
LOCKED All surface features remain intact with the light green paint in good condition on the ventilation shaft but flaking badly of the access shaft. There is an unusually low wide step up to the access shaft. When inspected in 1997 the post was locked but the hatch is now can now be opened with a ‘T bar’ key. Internally much remains including the table, shelf, cupboard, two chairs, high stool, battery box, fuse box, BT junction boxes and wiring, large splint, rope, BPI mount, some papers, waste bin, wall board, metal rack and cleaning materials
Opened in 1961 and closed in 1991.