Upper Flood Swallet

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Upper Flood Swallet
UK
OS gridST 50570 55765
Coordinates51°17′56″N 2°42′37″W / 51.29885°N 2.71037°W / 51.29885; -2.71037
Depth110m
Length4.1km
Discovery3 October 1968[1]
GeologyLimestone
Entrances1
DifficultyExtensive system with tight strenuous sections
AccessLeader controlled by Mendip Caving Group; experienced cavers only
Cave surveyMCG Upper Flood Survey 2012
RegistryMendip Cave Registry[2]

Upper Flood Swallet which was originally known as Blackmoor Flood

SSSI
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The entrance was revealed in the Great Flood of 1968,[3] giving the cave its name.[4] It was dug consistently since then with breakthroughs occurring in 1971, 1972, 1985 and 2006.[1]

As of September 2008 it is over 3.5 km in length and around 125 m deep.[5]

The 2006 breakthrough

In September 2006 cavers squeezed through an excavated boulder choke into new passage. In a series of three digging trips they discovered 1.2 km of well decorated cave.[6]

See also

References

  1. ^ a b Mendip Caving Group
  2. ^ "Upper Flood Swallet". Mendip Cave Registry & Archive. Retrieved 29 August 2016.
  3. ^ "Upper Flood Entrance Swallet". Mendip Caving Group. Retrieved 24 February 2011.
  4. .
  5. ^ "Mendip". UK and Ireland Cave Lengths and Depths. Retrieved 18 February 2007.
  6. ^ Mendip Caving Group

External links