alastairgott
Well-known member
Keep option 2, but the title I left on that survey I sent you still stands :alien:
Deepest caves in the Peak
- Thread starter Rob
- Start date
pwhole
Well-known member
I'd still stand by Longcliffe with option 2, minus 5.4m for the plastic entrance pipe!
But admittedly it is much trickier with some - we'd have to set specific points where the natural was judged to have 'begun', and especially where miners have modified the place, that could be almost impossible in many cases. JH would presumably then only qualify from the top of Leviathan to the bottom as all the passage up to that point is artificial - though I suspect Bitch Pitch may be an enlarged natural rift, it's impossible to know for sure now. Portions of our recent westward extensions from the entrance shaft base were almost certainly natural, and were only 6m below the surface - far higher than Leviathan, though not, admittedly continuous with Leviathan - perhaps 'contiguous' would be a preferable term?
But admittedly it is much trickier with some - we'd have to set specific points where the natural was judged to have 'begun', and especially where miners have modified the place, that could be almost impossible in many cases. JH would presumably then only qualify from the top of Leviathan to the bottom as all the passage up to that point is artificial - though I suspect Bitch Pitch may be an enlarged natural rift, it's impossible to know for sure now. Portions of our recent westward extensions from the entrance shaft base were almost certainly natural, and were only 6m below the surface - far higher than Leviathan, though not, admittedly continuous with Leviathan - perhaps 'contiguous' would be a preferable term?
martinb
Member
Can I throw one in here?
Treak Cliff Cavern, 1926 entrance is at 325m AOD, and the dig below 'Measureless to Man' is at 258m AOD, making Treak Cliff 67m?
Everything below Dome of St Pauls - 290m AOD, was discovered by, ahem, me and markc in 2014, and surveyed by Moose, so it's got to be right if Moose surveyed it!!
And, thinking about it, its all natural, as you don't need to touch the mined part of TCC to do top to bottom.
Treak Cliff Cavern, 1926 entrance is at 325m AOD, and the dig below 'Measureless to Man' is at 258m AOD, making Treak Cliff 67m?
Everything below Dome of St Pauls - 290m AOD, was discovered by, ahem, me and markc in 2014, and surveyed by Moose, so it's got to be right if Moose surveyed it!!
And, thinking about it, its all natural, as you don't need to touch the mined part of TCC to do top to bottom.
martinb
Member
martinb said:Can I throw one in here?
Treak Cliff Cavern, 1926 entrance is at 325m AOD, and the dig below 'Measureless to Man' is at 258m AOD, making Treak Cliff 67m?
Everything below Dome of St Pauls - 290m AOD, was discovered by, ahem, me and markc in 2014, and surveyed by Moose, so it's got to be right if Moose surveyed it!!
And, thinking about it, its all natural, as you don't need to touch the mined part of TCC to do top to bottom.
I've just revisited my notes on this, and Moose measured to a slot about 2m lower than the small chamber 'Measureless to Men', after that we dropped the floor of the slot - and widened it - by about another 2m.
So, Treak Cliff Cavern should be in the region of 69m top to bottom.
