| Lost John's Cave | |
|---|---|
Flowing stream leading into entrance cut |
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| Depth | 211 metres (692 ft) |
| Length | 4,800 metres (15,700 ft) |
| Geology | Limestone |
| Location | |
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| Gridref | SD670786 |
| Location | Leck Fell, North Yorkshire, England |
| Access | |
| Access | CNCC Permit |
| Discovery | 1928 |
| Difficulty | Grade 4 |
| Entrances | 4 |
| Cave survey | cavemaps.org |
Lost John's Cave is the most extensive cave system on Leck Fell, North Yorkshire, England. With its three major vertical routes (Dome Route, Centipede Route and Monastery Route) it is a popular place to practice SRT because of the opportunity for exchange trips.[1] Also it can be safely visited on wet days because many of the pitches can be rigged out of the water. It is an important part of The Three Counties System.
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, as well as the connection to the Notts Pot system.
Downstream leads through several neck deep pools past several inlets, including one which links with Rumbling Hole, and another which links to Deaths' Head Hole, to a sump which after 800m connects with Pippikin Pot.