Updated 18th April 1999; 3rd January 2018
The excavated shaft top in the side of the track enters a tight, 9m deep hole. In October 2017, it was probably spotted "within the bounds of the wide, muddy, logging motorway". A similar unrecorded shaft was also noted some metres to the north.
Reference: anon., 1998d (logbook); anon., 1999a (Easter logbook); anon., 2017d (autumn logbook)
Entrance picture: Sequence of exploration 1 2 3 4 5 6 7
On area survey: