1. Memoir of the Geological Survey of Great Britain (Sheet 24);R.S. Arthurton,1981
2. ARUP GEOTECHNICS, 1990, Review of mining instability in Great Britain, Stafford brine pumping, v.3/vi. Arup Geotechnics for the Department of the Environment.
3. CALVERT, A.F., 1915, Salt in Cheshire. Spon Ltd, London, 1206 p.
4. COLLINS, J.F.N., 1971, Salt: a policy for the control of salt extraction in Cheshire. Cheshire C.C.
5. COOPER, A.H., 1986, Foundered strata and subsidence resulting from the dissolution of Permian gypsum in the Ripon and Bedale areas, North Yorkshire, p. 127–139in G.M. Harwood and D.B. Smith, eds., The English Zechstein and related topics. Geological Society of London, Special Publication, no. 22.