Updated 30th June 2018

An excavated hole that drops steeply 18m into the base of the final pit that is traversed over in Cueva de los Helechales (site 408). A passage continues down at the bottom but becomes too small at a 3m drop. The surveyed length of 71m is included in Helechales.

Reference: anon., 2001c (Summer logbook); Corrin Juan, 2003a; León García José, 2010 (Volume 1 and Volume 2) (survey)
Entrance picture:
Underground picture(s):
Detailed survey: hand-drawn survey   1:1000 with site 408
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: 30/6/2018