A rift on the uphill side of the track which is about 0.8m diameter and 3m deep. It is possible to see 4 to 5m in this unexplored hole.

Reference: anon., 2005b (Easter & summer)
Entrance picture: yes
Underground picture(s):
Video: Ian Chandler looking into entrance
Detailed Survey :
Line survey:
On area survey:
Survex file: