Simpson Pot
Named after Eli Simpson, Simpson Pot is a limestone cave in West Kingsdale, North Yorkshire, England. It leads into Swinsto Cave and thence into Kingsdale Master Cave, and it is popular with cavers as it is possible to descend it by abseiling down the pitches, retrieving the rope each time, and exiting through Valley Entrance of Kingsdale Master Cave at the base of the hill. It is part of a 27-kilometre (17 mi) long cave system that drains both flanks of Kingsdale.
The entrance is in a shakehole, and enters a small active stream passage. This soon enlarges to walking size before plunging down a series of short drops called Five Step Pot. Below here the water drops down a 11-metre (36 ft) deep hole called The Pit, but the voie normale traverses over the hole into a dry series. The passage drops down a couple of climbs and a further two short pitches before arriving at the 9 metres (30 ft) deep Storm Pot, where the stream reappears in the roof. It is possible to follow the water through passages below The Pit. Below Storm Pot, it is necessary to negotiate a waist deep pool with limited airspace, known as The Blasted Hole. Beyond here the passage enlarges, and descends a further three pitches to arrive at Aven Pot. Two routes diverge at the top of this. The main route descends Aven Pot and soon reaches the 23-metre (75 ft) deep Slit Pot, the top of which is a tight fissure through which it is necessary to force oneself through. At the bottom of this, the passage joins Swinsto Cave, and the combined streams drop down a short climb into Swinsto Final Chamber. The same point can be reached by traversing over Aven Pot into a dry series where a hole in the corner of a chamber drops 40 metres (130 ft) into Swinsto Great Aven, where a descent of some boulders leads back into Swinsto Final Chamber. The Strike Series, accessed by ascending a 21 metres (69 ft) pitch at one end of the Great Aven, is a complex of passages rising to a height of over 100 metres (330 ft).
Cave data from Wikidata (CC0). Summary from Wikipedia (CC BY-SA).