472 Sima de la Piluca
South Vega VN51829427 Alt. 570m Depth 135m
Updated 19th February 1999; 14th May 2000
The entrance, which has a tree just visible on the southern slope of a large depression, is one big pitch with two rebelays, about 120m deep. Passage 15m up from the floor goes to an 18m pitch with about 75m of small choked passages one of which rejoins the main shaft 5m up.
A pendulum reaches the opposite side of the shaft and a passage which leads straight to a 27m pitch with an immature stream flowing across the floor. All obvious ways choke or get too tight. A strongly draughting boulder choke 3m up the far wall has been dug through into another chamber full of loose boulders and a steeply descending mud slope down which boulders fall for about 3 seconds. Needs hammering and digging.
References: anon., 1983b (logbook); Corrin J, 1983b; material
in file; García José León, 1997; anon., 2000b (Easter
logbook)
Entrance picture :
Underground picture(s):
Detailed Survey :
Line Survey :
On area survey :
Survex file :