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Langcliffe Pot
Langcliffe Pot is a cave system on the slopes of Great Whernside in Upper Wharfedale, about 2 km SSE of Kettlewell in Yorkshire (UK NGR SD996711), and actually some 20 km NNE of Langcliffe village. The cave entrance is at an altitude of 470m. The system has a total surveyed passage length of about 10 km, and a depth of only a little more than 100m. It was explored originally in 1936 and 1954 by the Craven Pothole Club (CPC), extended in 1968 by the Yorkshire Underground Research Team (YURT), and in 1968-70 by the University of Leeds Speleological Association (ULSA〔University of Leeds Speleological Association (ULSA )〕).
== Description ==
The Oddmire entrance drops below a limestone slab at the bottom of an otherwise unremarkable shallow shakehole north-east of Fox Scar. A pitch of 30m leads to a traverse, then the start of 200m of wet crawling, Craven Crawl, the termination of the cave until 1968.〔Rogers, M., ''Langcliffe Pot'', ULSA Review, No.5, pp7-15, 1969〕〔Some of the early exploration is described in David Yeandle, ''The Adventures Of Another Pooh: Caving Explorations and Escapades'', AuthorHouse, 2002〕 Beyond Number One Junction, Stagger Passage leads 600m to Hammerdale Dub, and a junction with still larger passage continuing downstream. Some 1500m of streamway interspersed with boulder obstacles, Langstrothdale Chase, ends in a bedding plane crawl leading to Boireau Falls Chamber, 20m in diameter and 6m high, where the stream reappears and cascades into the boulders flooring the chamber. A complex boulder choke leads to a 20m pitch dropping into the Nemesis chamber. A massive collapse region, a tight and navigationally complex boulder choke, leads to Gasson's Series,〔Yeandle, D., ''Langcliffe Pot: Gasson's Series'', ULSA Review No.8, pp15-19, 1971〕 initially high streamway, descending past Poseidon Sump and on into a procession of fine rift passage and chambers of the Agora, before turning east into Aphrodite Avenue, a handsome canyon with gour pools, and the Silver Rake. The system comes to an end at a wall of sand and boulders, which can be bypassed to a smaller descending passage reaching a sump.
Notwithstanding its limited depth, a trip into the far reaches of Langcliffe Pot is still rated as one of the more serious undertakings in British caving. A detailed passage description and survey is given in ''Northern Caves''.〔Northern Caves, Volume 1, Dalesman Publishing, 1972〕〔see also http://www.northerncaves.org.uk/〕 A survey in relation to the other caves of the Black Keld drainage system, and a detailed discussion of the geology and hydrology, is given in ''Limestones and Caves of Northwest England, Chapter 22''.〔Limestones and Caves of Northwest England, A.C. Waltham (ed.), David & Charles, 1974〕
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