Found as a 30cm diameter draughting hole on the side of an elongated shakehole, a dig (which also draughts) was eventually started the other side of a large boulder. A large limestone rock needs breaking up to progress.

References: anon., 2017c (summer logbook)
Entrance pictures : August 2017
Underground pictures :
Video :
Detailed survey :
Line Survey :
On area survey :
Survex file :