Updated 15th May 2020

A resurgence at a concrete trough. This was checked with OBA detectors in the autumn 2016 when OBA was put into a stream in a Moncobe site being explored by the GE Pistruellos. (The water was traced to La Riega).

References: anon., 2016d (autumn logbook); anon., 2020c (Spring, summer logbook)
Entrance pictures :
Underground pictures :
Video :
Detailed survey :
Line Survey :
On area survey :
Survex file :