Pretty sure it is Charterhouse Cave on Mendip at 228 metres but I could be wrong.
Quote from: mrodoc on June 25, 2020, 10:54:17 pmPretty sure it is Charterhouse Cave on Mendip at 228 metres but I could be wrong.Or 219 m to the sump - the rest is underwater.
Quote from: aricooperdavis on June 25, 2020, 10:25:40 pmQuote from: benshannon on June 25, 2020, 09:07:04 pmOfd is in Wales matey that'll teach me not to skim read posts!Not wishing to be pedantic or controversial, but Wales is part of England, and has been since the campaigns of King Edward 1st in 1283.https://en.wikipedia.org/wiki/Conquest_of_Wales_by_Edward_I_of_EnglandI realise that is not without controversy!Chris.
Quote from: benshannon on June 25, 2020, 09:07:04 pmOfd is in Wales matey that'll teach me not to skim read posts!
Ofd is in Wales matey
I once heard that an oft-overlooked contender for "deepest trip" would be a theoretical trip from Maskhill Mine down to the bottom of East Canal (the ~30m depth of East Canal included). Can the might of UKC's corrective nature crunch the numbers on that one to see how deep that would be, entrance to bottom?I know it won't count as the deepest cave, as Maskhill is a mine, and not even deepest trip, as other mines are deeper.
Consulting the Peak/Speedwell 3D model, the Top of the Titan entrance shaft (and pretty much the top of the entrance shaft of JH) to the bottom of Main Rising, is 267m - which would make it deeper than the 3CS (if the 249m value on Wikipedia is to be believed). However both the Titan and JH entrance shafts are artificial, so it would seem wrong to count them - there are much much much deeper mines in the UK (1400m depth!!).The very top of Titan, to the bottom of Main Rising is 237m - which would make it slightly shallower than the 3CS. The deepest you could do without diving would be 166m.B
Uh oh. We have a problem. Best give it to boulby potash mine.When does a cave dig turn into a mine? When it was done? Use of explosives? The reasons it’s been dug? Do we just include entrances? Meregill it is then
is it a good trip?
Quote from: Benfool on June 25, 2020, 11:01:51 pmConsulting the Peak/Speedwell 3D model, the Top of the Titan entrance shaft (and pretty much the top of the entrance shaft of JH) to the bottom of Main Rising, is 267m - which would make it deeper than the 3CS (if the 249m value on Wikipedia is to be believed). However both the Titan and JH entrance shafts are artificial, so it would seem wrong to count them - there are much much much deeper mines in the UK (1400m depth!!).The very top of Titan, to the bottom of Main Rising is 237m - which would make it slightly shallower than the 3CS. The deepest you could do without diving would be 166m.BSounds like it's time you got back down there with a shovel then, Derbyshire has a crown to claim!
Or stick Rob back into cliff hangar. If nettle was connected that would give 303.81m.As for depth potential it's definitely in the peak as the limestone goes down quite a way but you will need more than a few cylinders to do it.
In case anyone's still pondering on the Maskhill to Giant's East Canal vertical range, I can confirm that East Canal is 24.5 m deep in dry conditions (i.e. when water level is at the level of the floor of the approach passage as you enter the East Canal chamber.
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