106 Torcón de Riaño
Riaño VN52289945 Alt. 265m  Length 120m Depth 95m

Updated 30th August 1998

The entrance is well hidden in a densely vegetated area opposite a cabaña. A bouldery entrance slope meets a trickle of water from a pipe which then flows down the pitch. The first drop of 3m is followed immediately by the main pitch of 91.5m. At the base, a narrow vadose streamway sumps after 100m. This is about 50m from the upstream sump in 4th River Inlet in Cueva de la Hoyuca (107), and they presumably connect.

References: anon., 1975b (logbook); Kendal Caving Club and Manchester University Speleological Society, 1975 (survey); Corrin J et al, 1981b; Mills L D J and Waltham A C, 1981 (survey); Corrin J S and Smith P, 1981; Manchester University Speleological Society, 1982; material in file; anon., 1998d (logbook)
Entrance picture :
Underground picture(s): entrance slope
Detailed Survey :
Line Survey :
On area survey :
Survex file :