Updated 8th January 2018

Twin entrances unite in a bedding which would be accessible by removing some floor. A further 4 - 5m can be seen but there are no plans to dig it out. 

Reference: anon., 2013d (summer logbook)
Entrance pictures : summer 2013
Underground pictures :
Video :
Detailed survey :
Line Survey :
On area survey :
Survex file :