World Famous Blue John Cavern Derbyshire
Mam Tor Castleton, Hope Valley, Derbyshire, S33 8WA
MONTHS OPENJanuary, February, March, April, May, June, July, August, September, October, November, December
What we offer on a school trip
Blue John is a fluorite mineral, which with this rich colouration can only be found here in the World, in the historical village of Castleton, in the heart of the Peak District National Park surrounded by beautiful scenery. A very educational area, in many aspects.