0273: cave
La Colina 30T 453720 4797115 (Datum: ETRS89. Accuracy code: G) Altitude 485m
Length 120m
Area position

Updated 9th October 2004; 10th December 2006

A strong draught blows from the one metre square entrance. A boulder heap inside has an aven above which has been climbed to about 100m of crawling which has probably been joined with site 635. The cave was surveyed to tight squeezes in autumn 2006.
In 2006 it was noted that most of the cave was an easy crawl with a ladder useful for the climb up. About 40m in there is an easy, draughting dig into a larger section.

7m to the east is a second cave with a 2 x 1m entrance. This is about 6m long with a draughting aven in the roof.

References: anon., 1981a (logbook); Corrin J, 1983c; anon., 2004d (summer logbook); anon., 2006e (autumn logbook)
Entrance picture : yes  summer 2004  autumn 2006
Underground picture(s): false floor
Detailed Survey : pdf file 1:500
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.)