Updated 19th September, 2012; 18th September 2024; 24th January, 4th May 2025

[Original description
   A small entrance leads to a climb down into a small chamber with a strong draught. When the entrance was photographed in the summer, 2012, no draught was noticed. The cave was surveyed in July 2024 with the draught shown.
   The cave was extended for about 50m beyond the dig in December 2024. A small, 1m high, stream passage was followed to a "sizeable chamber with a large flowstone dome." There are other possible routes to look at, and it is hoped to further document the extension at Easter 2025. ]

Note: The length above is incorporated into the length of Risco, i.e. 11840 + 785m = 12625m

Updated description after being extended and linked to Risco at the Tonto Series, April 2025:

References: Fernández Gutiérrez et al, 1966; Kendal Caving Club and Manchester University Speleological Society, 1975 (survey); Manchester University Speleological Society, 1982 (survey); Corrin J S and Smith P, 1981; anon., 2012d (summer logbook); anon., 2024d (summer logbook); ; anon., 2024f (Christmas logbook); anon., 2025a (Easter logbook)
Entrance pictures : 2012
Underground picture(s): 2024 : Easter 2025 in hand
Detailed Survey : 2024 : Easter 2025 - in hand
Line Survey :
On area survey :
Survex file : 2024 : Easter 2025