Flood Entrance Pot: Difference between revisions
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==External links== |
==External links== |
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*[http://www.braemoor.co.uk/caving/bar.shtml Bar Pot Rigging guide] |
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*[http://www.braemoor.co.uk/caving/route18.shtml Route Guide for the Bar Pot Alternative] |
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*[http://www.braemoor.co.uk/caving/route18rg.shtml Rigging Guide for the Bar Pot Alternative] |
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*[http://www.braemoor.co.uk/caving/bar/intro.shtml Full on-line description of the system] |
*[http://www.braemoor.co.uk/caving/bar/intro.shtml Full on-line description of the system] |
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Revision as of 18:05, 9 January 2014
| Flood Entrance Pot | |
|---|---|
 Flood Entrance Pot | |
.svg)  Showing location of Flood Entrance Pot in North Yorkshire | |
| Location | Ingleborough, North Yorkshire, [UK] |
| OS grid | SD 7513 7242 |
| Depth | 146 metres (479 ft) (To bottom of South East Pot)[1] |
| Length | 248 metres (814 ft)[1] |
| Discovery | 1909 |
| Geology | Carboniferous limestone |
| Entrances | 3 |
| Difficulty | IV[1] |
| Hazards | verticality[1] |
| Access | Permit [2] |
| Cave survey | 1980 LUSS survey on Cavemaps |
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Flood Entrance Pot is one of the entrances to the Gaping Gill system being located about 300 metres (330 yd) south of Gaping Gill Main Shaft. It was the first alternative entrance into the main system to be explored, and it is now a popular entrance into the system, with a fine 40 metres (130 ft) pitch landing in Gaping Gill's South East Passage.
Description
A climb down from the small shakehole soon leads to a tight 15 metres (49 ft) pitch. At the bottom the passage passes beneath the aven where Wades Entrance joins, and after a further 80 metres (260 ft) it goes round a series of bends to where the last pitch of OBJ Hole enters. There is a chamber after a further 30 metres (98 ft) where a small stream enters from an inlet passage. Downstream a succession of climbs and a 14 metres (46 ft) reaches the main pitch of 77 metres (253 ft). South East Passage in Gaping Gill may be stepped into from the −38 metres (−125 ft) level, but the shaft continues in two stages as South-East Pot to a deep pool.[1] This is a window into an underwater passage, and dye tests have shown that the water from Gaping Gill Main Chamber and from Stream Passage Pot flow through this passage.[3]
Wades Entrance (54°08′50″N 2°22′57″W / 54.147100°N 2.382525°W) may be found 30 metres (33 yd) north-east of Flood Entrance Pot. A 3 metres (10 ft) climb down lands at the top of a 20 metres (22 yd) pitch which drops into the passage a few metres downstream of the Flood Entrance Pot entrance pitch. This is a very much easier than the original entrance, and is the voie normale.
OBJ Pot (54°08′50″N 2°22′59″W / 54.147352°N 2.383081°W), is located 80 metres (87 yd) north-east of Flood Entrance Pot immediately to the west of the path. It consists of a free-climbable 4 metres (13 ft) pitch, followed by a 12 metres (39 ft) and an 18 metres (59 ft) pitch which is choked with shingle. The way on is actually at the base of the second pitch where a tight rift leads into an equally tight inlet that enters the roof of the main passage in Flood Exit Pot.[4][5]
History
The cave was first entered in 1909 by members of the Yorkshire Speleological Association who were motivated to look for an entrance after finding some flies and a red worm at the bottom of South East Pot. They concluded that these must have come from the surface having descended the high aven above. It gained its name as it allowed the Gaping Gill system to be entered even when the Main Shaft was in flood.[6]
Wades Entrance was opened up by the Bradford Pothole Club in 1957. Eric Wade failing to get through the entrance squeeze in Flood Entrance, dug in an adjacent shakehole and got through after getting a voice connection.[4]
OBJ Pot was opened up the members of the British Speleological Association in August 1949.[7] It took its name from a beer brewed by Dutton's brewery in Blackburn.[4] The connection was finally made with Flood Entrance Pot by Bradford Pothole Club in May 2010, who enlarged the rift at the bottom of the first pitch.[5]
In 1980 Lancaster University Speleological Society published a comprehensive survey of the cave.[4]
References
- ^ a b c d e f g Brook, Dave (1991). Northern Caves 2 The Three Peaks. Clapham, via Lancaster: The Dalesman Publishing Company. pp. 182–1183. ISBN 1855680335.
- ^ "Cave Access Information". Council of Northern Caving Clubs. Retrieved 5 January 2014.
- ^ Cordingley, John (1197). "That dye test: GG Main Chamber to South East Pot". Craven Pothole Club Record (46): 20–21.
{{cite journal}}: Unknown parameter|month=ignored (help) - ^ a b c d Boothroyd, Colin (1980). Bar Pot and Flood Entrance Pot. Lancaster: Lancaster University Speleological Society. Retrieved 5 January 2014.
- ^ a b Benn, Ged (2013). "OBJ, Gaping Gill's 21st Entrance". Bradford Pothole Club Bulletin. 7 (4): 116–117.
{{cite journal}}: Unknown parameter|month=ignored (help) - ^ Greenwood, W.H. (1910). "Flood Entrance: Gaping Ghyll". Yorkshire Ramblers' Club Journal. 3 (10). Leeds: Yorkshire Ramblers' Club: 167–173.
{{cite journal}}:|access-date=requires|url=(help) - ^ "New Explorations". Cave Science. 2 (10): 87. 1949.
{{cite journal}}: Unknown parameter|month=ignored (help)