Updated 30th August 1998; 19th February; 17th December 1999; 14th May 2000; 21st January 2001; 6th January 2011; 11th February 2016; 1st July, 23rd September 2018; 15th November 2022

The system was resurveyed during the Easter 2000 expedition. The lengths and depths mentioned have the original Spanish data in brackets.

A Catalan site which may be a future top entrance to SVS/Vallina system. The stream passage ends 306m (340m) down at a feature which could be removed. An alternative grid reference from Cantabria Subterránea. Catálogo de las Grandes Cavidades (García José León, 1997) is VN48799369 z650 (datum?).

The boulders blocking the route at the base of the cave have a couple of Hilti cap holes.

References: anon., 1996b (logbook); anon., 1998d (logbook); García José León, 1997 (survey); anon., 1999c (logbook); Corrin Juan, 2000; anon., 2000b (Easter logbook); Corrin Juan, 2001; León García José, 2010 (Volume 1 and Volume 2) (survey section); Simonnot G, 2016; Simonnot G, 2018; Simonnot G, 2022
Log book: summer 1999
Entrance picture: 2018
Underground picture(s):
Detailed survey: scanned Catalan survey projected section
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.)
Passage direction rose diagram: 1/7/2018