Silo, Did you happen to meet a german explorer who also worked at that mine up the headstock in the 5th picture?
Lol, we met a whole posse of explorers and colliery anoraks there... well... after we came out of hiding, having realised they werent security. The head honcho's 10 year old daughter then went with us to see the rest... first time ive ever turned back from climbing to the top of a hellishly rusty headstock... cos a 10 year old was following me and i wasnt willing to be responsible if she injured herself... lol.