Updated 13 February 1998; 16th June 2005; 11th February 2016; 1st July, 23rd September 2018; 17th February, 15th November 2022

A pitches-and-chambers system near to Cueva Valline (733), the resurgence (site 791) and Cueva del Molino (727). Surveyed by the Espeleo Club Tortosa, and in their old area. Explorations in 1997 failed to link the cave with Molino below despite the systems being very close.

According to Simonnot, 2016, a second survey has been produced (Mataro 2015) giving a depth of 72m.

Possible artefacts (rusty tins and egg shells) from the maquis were documented in the northeast chamber in February 2022. The location is marked in red and can be seen here. Video link

Reference: anon., 1997b (logbook); Simonnot G, 2016; Simonnot G, 2018; anon., 2022a (January, February logbook); Simonnot G, 2022
Entrance pictures : 1997, 2022
Underground pictures: February 2022
Video: Possible Maquis artefacts (YouTube)
Detailed Survey : gif   pdf
Line Survey :
On area survey :
Survex file : site 1099 (Amended magnetic declination December 2013 to align with Eur79 grid and coordinates altered to fit ETRS89 datum, April 2014.) 
site 1099 with Cueva Molino 727 below
Passage direction rose diagram: 1/7/2018