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Lost Johns' Cave is the most extensive cave system on Leck Fell, Lancashire, England. With its three major vertical routes (''Dome Route'', ''Centipede Route'' and ''Monastery Route'') it is a popular place to practise single rope technique (SRT) 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. 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, 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 the high-level passages of ''Lyle Cavern'' and a connection with the Notts Pot system. The main streamway continues to the ''NPC Avens'', where Boxhead Pot and It's a Cracker enter the system. Downstream leads through several neck-deep pools past several inlets, including one which links with Rumbling Hole, and another which links to Death's Head Hole, to a sump which, after , connects with Pippikin Pot. ==See also== * Boxhead Pot * Death's Head Hole * Rumbling Hole * Long Drop Cave * Lost Pot 抄文引用元・出典: フリー百科事典『 ウィキペディア（Wikipedia）』 ■ウィキペディアで「Lost John's Cave」の詳細全文を読む スポンサード リンク
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