D1502
Castleton: postcard views of Blue John Caverns
[early 20th cent]
Unidentified
Derbyshire Record Office
D1502/1
Entrance (on moor)
D1502/2
Entrance tunnel
D1502/3
Waterfall cavern
D1502/4
Crystallised cavern
D1502/5
Balancing rock
Sir John Franklin (1786-1847), naval officer and arctic explorer