Updated 9th November 2003; 21st, 24th April, 29th November 2016

The site entrance, next to a water treatment plant, was "rediscovered" at Easter 2016 and is out of the current permit area.

The entrance is at the end of the large river bed and the passage slopes down to walking height. The passage is essentially the old water route, the modern drainage apparently being confined to narrow cracks a couple of metres below. The water sinking in the river bed is seen in such cracks 10m inside the cave.

The first 80m is walking on mud and boulders to a climb up and down to a chamber and a 60m long 1m high, decorated bedding. The passage splits and unites in a 2m high rift with a metre deep pool and a short walk to a 4m free climb down. The passage then chokes with boulders although a draught can be detected and the presumed resurgence is about 100m away.

The original survey appears to have been mainly carried out without a clinometer. The 3d file below will not show the true cave line. It wouldn't be a waste of time to resurvey the cave and to photograph it.

See site 0549 for the resurgence. See site 0550 for a fossil remnant. See 2016 Easter logbook, 19/4/2016, for other sites that have been noted.

The stream entering the cave was checked with OBA detectors in the autumn 2016 when OBA was put into a stream in a Moncobe site being explored by the GE Pistruellos. (The water was traced to La Riega).

References: anon., 1976 (logbook); Cope J et al, 1976 (survey); material in file; anon., 2016b (Easter logbook); anon., 2016d (autumn logbook)
Entrance picture :
Underground picture(s):
Detailed Survey : from 1976: low res  high res
Line Survey :
On area survey :
Survex file : yes (clino only used for early part of survey)