Lost John's Cave
Encyclopedia
Lost John's Cave is the most extensive cave system on Leck Fell
Leck Fell
Leck Fell is a Site of Special Scientific Interest in Lancashire. An area of typically heavily grazed open moorland of rough grass and remnant patches of heather with little or no tree cover, it is characterised by the virtual absence of surface drainage and an extensive subterranean drainage...

, North Yorkshire
North Yorkshire
North Yorkshire is a non-metropolitan or shire county located in the Yorkshire and the Humber region of England, and a ceremonial county primarily in that region but partly in North East England. Created in 1974 by the Local Government Act 1972 it covers an area of , making it the largest...

, England
England
England is a country that is part of the United Kingdom. It shares land borders with Scotland to the north and Wales to the west; the Irish Sea is to the north west, the Celtic Sea to the south west, with the North Sea to the east and the English Channel to the south separating it from continental...

. With its three major vertical routes (Dome Route, Centipede Route and Monastery Route) it is a popular place to practice SRT
Single Rope Technique
Single Rope Technique is a set of methods used to descend and ascend on the same single rope. SRT is used in caving, potholing, rock climbing, canyoning, roped access for building maintenance and by arborists for tree climbing.-Historical Developments:...

 because of the opportunity for exchange trips. Also it can be safely visited on wet days because many of the pitches can be rigged out of the water.

All routes converge on Battleaxe Streamway. From here the usual route is to shuffle along Battleaxe Traverse at a high level, protected by rope, until the canyon becomes too wide, and descend a safe distance from the water. From here a short passage and another pitch leads to Groundsheet Junction where the Leck Fell Master Cave is entered.

Upstream leads to Lost Pot, Lyle Caverns and a second entrance from Boxhead Pot.

Downstream leads through several neck deep pools past several inlets, including one from Rumbling Hole
Rumbling Hole
Rumbling Hole is one of the many fenced off sink holes near the road on Leck Fell, North Yorkshire, England. The entrance shaft is approximately 50m deep and often with a small waterfall cascading down the side opposite the single solitary Yew tree that grows at the edge of the vertical shaft and...

 to a sump which after 800m connects to Pippikin Pot.
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