Updated 30th April 2005; 10th December 2006

In difficult limestone terrain above the cliff that contains caves 271, 272, 273 and 274. A 4m deep shaft to a base of boulders with gaps and possible continuation. Other undescended holes exist on the route back to the northern end of the cliff.
In 2005, the hole was possibly seen again, with the GPS grid reference above. (Original grid reference is VN53839728 Altitude 525m).

However, this site is labelled "M5" as is site 273 in the cliff below. So it is likely that the position of site 1585 is really 635 and there is another hole around here. This won't be definitively cleared up until "635" is re-explored down through 273 to the surface.

The holes seen in the top section of the cliff above 271 - 274 have been abseiled into and found to be alcoves on the joints.

Reference: anon., 2000c (Summer logbook); anon., 2005b (Easter & summer)
Entrance picture: yes
Video: entrance and surroundings
Underground picture(s):
Detailed survey:
Line survey:
On area survey:
Survex file: