Hollandtwine Mine
Access
block No access to this site allowed.
Mine entrance has been quarried away.
References
(1966) , Jour. E.P.C. Vol.7. No.1, p.12., Eldon Pothole Club
(1972) , Descent No.22., p.13., Wild Places Publishing
(1972) , D.C.A. N/L No.14., pp.2-3., Derbyshire Caving Association
(2010) , Caves of the Peak District, p. 98, DCA