The entrance hole - not visible until you are standing next to it - lies at the base of a limestone cliff and is a 10m pitch into a large chamber.
The site is labelled M23 with green paint.
References: anon., 1984 (logbook) (survey); pers comm; anon., 1996b (logbook); anon., 2000c (Summer logbook); anon., 2005c (autumn logbook)
Entrance pictures : yes
Underground picture(s): yes
Detailed Survey : from DistoX (drawn up survey to come)
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.)