0763: Vaca Loca, Cueva de
Seldesuto 30T 448938 4794911 (Datum: ETRS89. Accuracy code: M) Altitude 222m
Length 54m Depth 7m Vertical range -7 +2m
Area position

Updated 13 February 1998

The cave is located in an earth bank a few metres up slope from the "abandoned" river bed at the end of the valley. Two strongly draughting holes were excavated in 1989 and, after several visits, the cave was finally extended in the summer of 1996.

The lower hole is too small to enter and probably connects further in, while the lower one leads to a low downward slope over earth and boulders to a small chamber. Straight ahead, the cave quickly closes down in an area of tight rifts over a dug pit. Squeezing through a bedding on the right, an upward slope may be wriggled up into an excavated boulder choke. Immediately to the right a blind pit is first passed and a narrow rift ahead is entered. A pitch of 7.5m descends into a chamber with several ways out, all appear to choke with sand or mud or are too small. (This area appears to contain no draught and also seems to take much water on occasion).

Two bolts with natural backups may be used to safely traverse over the pitch. The strong draught is followed left through a dug tube into a narrow rift. An enlarged route past two rock pendants over calcite leads to a small chamber which has a very strongly draughting rift in its floor. The rift is blocked by calcite and small blocks, which may dig and it appears to have a 5m drop about 3m in.

Reference: anon., 1989 (logbook); Neill A et al, 1989; material in file; anon., 1995c (logbook); anon., 1996b (logbook); anon., 1997a (Easter logbook); Corrin Juan, 1998;
Entrance picture :
Underground picture(s):
Detailed Survey : 1:200
Line Survey :
On area survey :
Survex file : yes (Amended magnetic declination December 2013 to align with Eur79 grid and coordinates altered to fit ETRS89 datum, April 2014.)

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