Access
20m up the footpath (after entering the dale through the gate), on the right, under an overhang in the cliff, opposite the small quarry. Entrance is reached by clambering up rock ledges, which are extremely smooth and slippery, so take care, especially when wet. No known access restrictions.
References
(2010), , Caves of the Peak District, p. 80, DCA
(2017), Castleton’s oldest mine, Descent 254, p.12., Wild Places Publishing