Updated 18th October 2016

   An old grid reference put the larger entrance at 30T 452998 4797251 (Datum: ETRS89)

   The entrance is 10m higher and 30m south of site 616. A flat out crawl to a tight squeeze and a stalled passage. There is a too-tight second entrance. The site was re-explored and surveyed in August 2016 when the smaller hole was GPS'd at 0453035 4797259 and given its own number - 4471. It appears to be too far away to be a certain second entrance!

Reference: anon., 1997b (logbook); anon., 2016c (summer logbook)
Entrance pictures : August 2016
Underground picture(s):
Detailed Survey : pdf
Line Survey :
On area survey :
Survex file : yes (with 4471)