3929: Lisa, La
Cubillas 30T 452648 4796094 (Datum: ETRS89. Accuracy code: G) Altitude 153m
Area position

Updated 21st February 2016; 6th May 2016

This is now a large round area in the field where most of the water from Sima-Cueva del Risco resurges.
During an optical brightener test from site 3884, detectors were placed in the stream near the pasabolo pitch from 13th February 2016 and checked over the next few days in rising and falling flood conditions. The results were consistently negative. The optical brightener came through at the Jivero 1 resurgence after 48 hours. (The full details can be found here.)
The site was visited in March 2016 and described as a muddy hole in a field.

Reference: anon., 2013d (summer logbook); anon., 2016a (January, February logbook); anon., 2016b (Easter logbook)
Entrance picture : yes
Underground pictures :
Video :
Detailed survey :
Line Survey :
On area survey :
Survex file :