Those amazing cavers at Subterranean Greenwich have found an old description of Blackheath Cavern, from the Morning Chronicle, on Tuesday 8th April 1817:
Tag Archives: chalk
The hidden mines…
Are there undiscovered chalk mines waiting to collapse on Blackheath Hill? Subterranean Greenwich seems to think so…
Winn’s Chalk Mine, Blackheath Hill
I think we need a remote control plane and some radar equipment…
Filed under blackheath, history
Licensed under a 
