Updated 26th September 2023

This site was found as a small, very cold and strongly draughting hole in the next shakehole down the valley from site 3684. It was partly excavated in 2012. In 2023, it was pushed through to a constriction over a large block where an enlargement can be seen. (See video below.)

Reference: anon., 2012b (Easter logbook); anon., 2023c (summer logbook)
Entrance pictures : 2012 and 2023
Underground pictures :
Video : 2012 : 2023
Detailed Survey :
Line Survey :
On area survey :
Survex file :