Updated 24th October 2009; 20th May 2017

The twin entrances, next to the track, unite in a network of boulder-filled fissures that close in.

References: anon., 1982 (logbook); Corrin J, 1983c; anon., 1993b (logbook); anon., 2009c (summer logbook); anon., 2017b (Easter logbook)
Entrance picture : 2017
Underground picture(s):
Detailed Survey :
Line Survey :
On area survey :
Survex file :