4837: Hoyo (2661 (French: SCD))
Arredondo 30T 450867 4793123 (Datum: ETRS89. Accuracy code: M) Altitude 429m
Depth 2m
Area position

The information below has been roughly translated from the French, Spéléo-Club Dijon reference, Simonnot G, 2018.

  A small sinkhole upstream of a string of depressions dotting the valley from Rotura to Tocornal and Piluca. In the sinkhole a collapse in the yellow soil and blocks appears relatively recent (4 x 3 m and 2 m deep). A small side racking along a part of rock in place did not give a glimpse of immediately(?)

References: Simonnot G, 2018
Entrance pictures :
Underground pictures :
Video :
Detailed survey :
Line Survey :
On area survey :
Survex file :