Aquamole Pot Explained

Aquamole Pot
Photo Width:240
Location:West Kingsdale, North Yorkshire, UK
Coords:54.1999°N -2.4625°W
Discovery:1974
Geology:Carboniferous Limestone
Grid Ref Uk:SD 69926 78338
Map:United Kingdom Yorkshire Dales
Map Width:240
Entrance Count:2
Hazards:Verticality, water
Access:Free
Survey:cavemaps.org

Aquamole Pot is a limestone cave in West Kingsdale, North Yorkshire, England. It was originally discovered by cave divers who negotiated 168m (551feet) of sump passage from Rowten Pot in 1974, to enter a high aven above the river passage.[1] All subsequent major explorations were undertaken from below before an entrance was opened up from the surface. It is part of a 27km (17miles) long cave system that drains both flanks of Kingsdale.[2]

Description

The entrance is a 60m (200feet) deep shaft, some 40m (130feet) from Jingling Pot, the top section of which is lined with breeze-blocks. Below this a short drop enters a small stream passage which leads after some 50m (160feet) to a 10m (30feet) pitch. This enters a chamber, and a crawl continues which soon descends into a continuation of the stream passage. After a few metres (feet) this opens out at the head of Aquamole Aven - a 40m (130feet) deep shaft that passes a large ledge 5m (16feet) down. At the base of the shaft, downstream quickly leads to a large sump pool, and upstream terminates where a small stream descends from an aven. From the downstream sump a 168m (551feet) dive leads into Frake's Passage in Rowten Pot. The upstream sump has been explored for 920m (3,020feet), with exploration continuing.

A passage above the sump pool has been climbed into a stream passage with water flowing from Green Laids Pot. Three successive avens have been climbed to a point where the way on is too small.

From the large ledge in Aquamole Aven, a small pitch upwards gains access to the One-armed Bandit Series. This starts as a large passage which traverses over a deep hole in the floor, before dividing. To the right a low wet crawl terminates just before the base of Jingling Pot. To the left, a series of large avens have been climbed almost to the surface.

The deep holes in the One-Armed Bandit Series provide a second route to the sump, and starts with a 24m (79feet) deep shaft. A steeply descending rift then leads to an 11m (36feet) pitch which drops into the sump pool chamber.[3]

Geology and hydrology

Aquamole Pot is a karst cave formed within the Great Scar Limestone Group of the Visean Stage of the Carboniferous Period, laid down about 335 Ma. It is basically a window into the West Kingsdale drainage phreas, with water from Yordas Cave and Bull Pot flowing through the sump at the bottom to eventually resurge at Keld Head - some 1.8km (01.1miles) away.[4] [5] It is likely that water from the nearby Jingling Pot originally flowed through the One-armed Bandit Series, and was the major feeder of Aquamole Aven. This water has since been captured by Jingling Caves.

History

The bottom of the cave, Aquamole Aven was discovered by Geoff Yeadon and 'Bear' Statham in 1974 after diving the upstream sump at the bottom of Rowten Pot. They started to bolt up the aven which now leads into the One-armed Bandit Series, but retired after reaching a height of . A team returned in 1980, and they used bolting equipment to complete the climb. They then climbed up the rift at the top to reach the bottom of the 24m (79feet) aven. Scaling poles were taken through the sumps by a large team, and its ascent was completed in two trips. The passage towards Jingling Pot was explored, and a series of avens climbed which reached near the surface. The upstream junction in the One-armed Bandit Series was radio-located and was found to be found to be 55m (180feet) from Jingling Pot.[6] [7]

Work restarted in 2000 when cave diver Rupe Skorupka who was keen to find easier access when pushing the upstream sump, scaled Aquamole Aven to a height of 50m (160feet) with Martin Holroyd. It pinched out, but they were able to gain access to a second series of inlet passages, the top of which was radio-located to a point 10m (30feet) below the surface. This was finally connected to the surface in June 2002.[8]

References

  1. Geoff Yeaden . July 1974 . Kingsdale master cave, Yorkshire . . New series No.32 . 16–18 .
  2. Web site: Wilton-Jones. Tarquin. Longest Caves. 24 December 2018.
  3. Book: Allshorn . Sam . Swire . Paul . Northern Caves. The Three Counties System and the North-West . 2017 . High Mead . Leeds . 978-1-5272-1095-0 . 71–72.
  4. Book: Waltham . Tony . Lowe . David . Caves and Karst of the Yorkshire Dales: Volume 1. . British Cave Research Association . Hucklow, Buxton . 978-0-900265-46-4 . 16–21 . 2013.
  5. Book: Waltham . Tony . Lowe . David . Caves and Karst of the Yorkshire Dales: Volume 2. The Caves . British Cave Research Association . Hucklow, Buxton . 978-0-900265-48-8 . 332–338 . 2017.
  6. Ian Watson . April 1980 . Kingsdale master cave, Yorkshire, Jingling Avens, Late reports . . New series No.59 . 12–13 .
  7. Yeadon . Geoff . Watson . Ian . Jingling Avens . Caves and Caving . February 1980 . 11 . 4–5 . 0142-1832.
  8. Rupe Skorupka . October 2002 . A Pot Into Aquamole . . 0046-0036 . 168 . 20–22 . 24 November 2011 . https://web.archive.org/web/20120501171845/http://www.wildplaces.co.uk/descent/descent168.html . 1 May 2012 . dead .

External links