A 4m long hands-and-knees crawl behind a broken down wall. Another small entrance is visible. This site and sites 3481 and 3482 are all in the same scar on the southern side of the depression within 20m of each other.

Reference: anon., 2010d (autumn logbook)
Entrance picture: yes
Underground pictures :
Video :
Detailed Survey :
Line Survey :
On area survey :
Survex file :