0523: shafts - 2
Bosmartín 30T 450432 4797569 (Datum: ETRS89. Accuracy code: G) Altitude 499m
Length 60m Depth 28m
Area position

Updated 13th May 2011; 20th January 2012

A large shakehole / shaft (laddered down a 4m drop) contains two holes. The first is a hole in side of depression above second shaft. A 2m draughting climb down leads to a sloping ledge and a 10m pitch in finely fluted limestone to a choke.

The second, main hole, is a 6m drop - belayed from an ash tree - to a boulder slope into a large, well decorated chamber. This slopes steeply down to the north with a short passage to a second chamber at the bottom. From the second chamber a small slot leads to the 3rd pitch of 12m to tight rift that ends of a mud floor.

Reference: anon., 1985a (Easter logbook); anon., 2011b (Easter logbook)
Entrance picture : yes
Underground picture(s): yes
Detailed Survey : yes
Line Survey :
On area survey :
Survex file : yes (Amended magnetic declination December 2013 to align with Eur79 grid and coordinates altered to fit ETRS89 datum, April 2014.)