Updated 18th, 22nd November 2017

Draughting holes below site 3261. Digging occurred over three sessions in October 2017 when 27m of passage was revealed leading to a collapse zone. There was no draught apart from at the entrance. However, smoke set off in a small extension to site 3261 appeared at the entrance "immediately". A line survey was carried out underground and between the entrances of 3915 and site 3261.

Reference: anon., 2013d (summer logbook); anon., 2017d (autumn logbook)
Entrance picture :
Underground pictures :
Video :
Detailed survey : with site 3261
Line Survey :
On area survey :
Survex file :