Limited & closely supervised access only. Contact Head Ranger well in advance, with SAE, at Visitor Centre, Crags Road, Welbeck, Worksop, Notts, S80 3LH, or tel. (reveal), to discuss requirements. A range of guided tours is available. Heritage site.
(1913), Geological Survey Memoir, The Northern Part of the Derbyshire Coalfield. , p.106-107. Survey,
(1970), , P.A.S. Bull. No.25., pp.11-12. Arc,