Updated 8th, 17th May 2018
[An old grid reference is 30T 452814 4798025. The new one above is on the southern lip of the depression.]
Previously documented as an "undescended shaft" this is more a walk-in depression - 20m long and 10m deep. At the base, a tiny stream sinks under a 6m high scar.
Reference: anon., 2000c (Summer logbook); anon., 2018b (Easter logbook)
On area survey: