I've just posted about that pic on another thread!
the flowstone curtains are formd over the former timber stemples; the timber has completely rotted away, leaving only the flowstone
agree about the grin, though. Plus, I'd rather have ANY Derbyshire cheese, than that dreadful oozy French stuff which smells like a railway station lavatory...
''the stopes soared beyond the range of our caplamps' - David Bick...... How times change .... oh, I don't know, I've still got a lamp like that.