067 Torcón de Cubija
Enaso VN50309678 Alt. 260m  Length 408m Vert range +11 -20m
A surface survey has the entrance at VN50299678 Alt. 240m; GPS position is 5030(8)9681(8)

The small entrance is in a large, steep sided shakehole which acts as a wet weather stream sink. A small passage leads to a 4m climb down and a squeeze into alternate walking and crawling. After an oxbow the passage enlarges and a route to the right ends in a muddy choke after 50m. The other direction leads to a chamber which carries a stream in wet weather. The stream bed can be followed to a small tube at the far end of the chamber. This ends at a nicely draughting pebble slope. This was dug through at Easter 94 to the base of an aven. The extension starts as a clean-washed and narrow rift and continues through several squeezes, over flakes, to a very small passage which probably sumps in wet weather. This continues for about 100m until a (perched?) sump is met at a low chamber. The sump appears to bell out a few metres down. Thirty metres back upstream, a flatout inlet on the left hand side has been pushed for about 30m and is still going.

Dangerous climbs above the tube lead to 70m of passage which close down in a heavily pocketed area where the draught is lost.

The dangerous climb can be bypassed by following the draught through a series of crawls into the final section. A draughting squeeze at the end, past a large, unclimbed aven, has been forced to a small, draughty, muddy tube that needs digging.

The aven at the end appears to be within a few metres of the long straw after the big traverse in Torca del Mostajo (071).

References: Kendal Caving Club and Manchester University Speleological Society, 1975 (survey); Ullastre-Martorell J, 1975 (survey and photo); Corrin J S and Smith P, 1981; Smith P, 1981b (survey); Corrin J, 1983c; anon., 1993b (logbook); material in file; Corrin J, 1994a (survey); Corrin Juan, 1995b (survey); anon., 1994a (Easter logbook); anon., 1995c (logbook); Corrin Juan, 1995a
Entrance picture :
Underground picture(s):
Detailed Survey :
Line Survey :
On area survey : shown on the North Vega System with no detail
Survex file :