Probably a collapsed passage - the depression has features at the northern and southern ends. The north side has a 3m drop into a diggable section (hammer required) to an enlargement. At the southern end, behind a hazel tree, is a tiny drop which is choked.

Reference: anon., 2002d (Christmas logbook)
Entrance picture: north   south
Underground picture(s):
Detailed survey:
Line survey:
On area survey:
Survex file: