Updated 23rd May; 8th October 2015; 26th October 2016

   A hole in the side of the track just below site 4016. It goes in for three metres to a boulder choke.

Reference: anon., 2014c (summer logbook); anon., 2015b (Easter logbook); anon., 2016c (summer logbook)
Entrance pictures : 2014, 2015, 2016
Underground pictures :
Video : Exploration Easter 2015 (YouTube)
Detailed survey :
Line Survey :
On area survey :
Survex file :