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Crofts River Cave One

August 15, 2010



District: Crofts River

Parish: Clarendon

WGS84 L/L: 18 09 37.8, 77 12 15.2 (Ent 1)

JAD2001: 728391 E, 667776 N

JAD69: 228280 E, 167487 N

Altitude: 465m WGS84

Accuracy: +/- 5m horizontal; +/- 10m vertical

 

Type: Complex river passage

Accessibility: Scramble

Depth: 45m

Length: 975m

Explorers: JCC, 1976

Survey: JCC

Vegetation in general locale: Scrub/farm

Vegetation at entrance: Scrub

Geology: White limestone

Bedding: Poor

Jointing: Poor

Speleothems: Stals, flowstone

Palaeo resources: Undetermined

Archaeo resources: None

Hydrology: Wet

Dark zone: >99%

Climate: ~22, Humid

Bats: Undetermined

Bat guano: Undetermined

Guano mining: None

Guano condition: Undetermined

Visitation: Rare

Speleothem damage: None

Graffiti: None

Trash: None

Ownership: Private

Protection: None

Vulnerability: Medium


Crofts River Cave One
August 15, 2010
Team: RS Stewart, J Pauel, Kingman, IC Conolley, A Hyde
Notes: RS Stewart

Video: Crofts River Caves (70 MB WMV)

The personnel for both of the Croft River caves were Stewart, Jan Pauel, Ivor Conolley, Adam Hyde, and Kingman.

We attempted Entrance 2 first (Watersink entrance), which had been located by Stewart in 2006. It is small, and difficult. Kingman pushed for about 10m inward, and was not comfortable with the confined space. I recommended that we abandon it and try Entrance 1 instead, because if he did not like it, most of the rest of the team wouldn’t either, and more importantly, it seemed doubtful that bats would use it.

Entrance 1, the rough location of which had also been located by Stewart in 2006, was found, and entered. It consists of a scramble over boulders into a narrow shaft that drops for about 6 metres to where the water of the river sink enters. Above this, on the north wall, is a very small passage that leads to the rest of the system. As with Entrance 2, it did not seem as though some of the members of the team would be comfortable going through this, and it also did not seem likely that bats would use it, so we gave up, and exited the cave.

The site needs a return visit. However, it seems low priority for netting. The morphology of both entrances is not conducive to use by bats, and it is hard to imagine there is much of a roost further in. But, this remains undetermined.

If catch and release of bats is attempted at the site, it should be with a harp trap at Entrance 1.

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