A large shakehole, uphill of the track and almost certainly part of the Fuente Aguanaz catchment. The depression is full of tyres - hundreds, if not thousands of them. On the south side is a small undercut.

Reference: anon., 2007d (summer logbook); Corrin Juan, 2007a; anon., 2009a (Easter logbook)
Entrance pictures : yes
Underground pictures :
Video :
Detailed Survey :
Line Survey :
On area survey :
Survex file :