James Hall's Over Engine Mine (JH) - additional information
References
(1994) , Descent No.116., p.19, Wild Places Publishing
(1997) The Connection of James Hall's Over Engine Mine to Peak and Speedwell Caverns, Bull. P.D.M.H.S. Vol.13. No.3., pp. 57-67. Survey., Peak District Mines Historical Society
(2010) , Caves of the Peak District, p. 98, DCA
(2014) Backburner Choke, James Hall (or playing Kerplunk in JH), TSG 19, pp. 29-32. Survey., Technical Speleological Group
(2015) Into the West Cartgate, Descent 241, Page 8. Survey, Wild Places Publishing
(2015) James Hall's survey, Descent 244, Page 15., Wild Places Publishing
(2015) Mine Shafts On And Around New Rake And Horsepit Rake, TSG 19, pp. 88-92. Survey., Technical Speleological Group
(2016) JH West Project, TSG 19, pp. 93-100. Survey., Technical Speleological Group
(2016) JH West, Flooded Cartgate Digging, TSG 19, pp. 101-104. Survey., Technical Speleological Group
(2021) James Hall Over Engine Mine - Lid Repairs, The Derbyshire Caver 255, p.11, Derbyshire Caving Association