4075: Perro Doble
Hoznayo 30T 443623 4805268 (Datum: ETRS89. Accuracy code: G) Altitude 51m
Length 73m Depth 7m
Area position

   Two holes in a rock face. The streamway closes down, very tight and with a slight draught.

Reference: anon., 2014c (summer logbook)
Entrance pictures :

Underground pictures :
Video :
Detailed survey : pdf
Line Survey :
On area survey :
Survex file : yes