Updated 27th October 2001; 25th May, 21st October 2003; 14th October 2004; 1st February 2006; 23rd December 2008; 30th November 2016; 11th September 2022

   Over 100m of phreatic passage with three entrances, rather higher than Cueva Adillos (34), another phreatic remnant. The cave consists of mostly walking-sized tubes.
In places it appears that the original stoney floor has been pushed up on each side, to deepen the centre of the passage for humans or animals.
   Some prehistoric potsherds have been found, out-of-context Bronze Age.
   A dig in the side of the main route through was found to be too small.
   The northwestern entrance is close to site 1887, but is 10m higher.
   GPS readings in August 2022 put the NW entrance at 0451538 4794774 and the SE entrance at 0451569 4794765.

Reference: anon., 2000c (Summer logbook); Corrin Juan, 2001 (photo); Ruiz Cobo Jesús and Smith Peter et al, 2001; anon., 2003b (Easter logbook); Ruiz Cobo Jesús and Smith Peter, 2003; Corrin Juan, 2005; Ruiz Cobo Jesús et al, 2008 (survey); Ruiz Cobo Jesús, 2016b; anon., 2022c (summer logbook)
Entrance picture: yes
Underground picture(s): summer 2000 : summer 2022
Bat, summer 2004
Detailed survey: 1:500 (amended Easter 2003)
Line survey:
On area survey:
Survex file: stand alone (Amended magnetic declination December 2013 to align with Eur79 grid.)  
download this site with 0034 and 1887 (Amended magnetic declination December 2013 to align with Eur79 grid and coordinates altered to fit ETRS89 datum, April 2014.)