These sites are in part of the Derbyshire Dales National Nature Reserve. Access is allowed under the terms of an agreement between the DCA and Natural England.
(1978), , Bull P.D.M.H.S. Vol.7. No.2., pp.107-115., Peak District Mines Historical Society
(2002), , C.C.P.C. N/L No.75b., pp.1-2., Crewe Caving and Potholing Club
(2010), , Caves of the Peak District, p. 298, DCA