Rhondda Cynon Taff
, Northern Outcrop - Central (Penwyllt to Penderyn)
map using leaflet map:
On common land.
A large postglacial depression, the sink of the Nant Sychbant.
Following the survey of the cave a dry entrance (this entry) was dug at the back of the shakehole.
Marked on 1840 tithe map of Penderyn. Dug by BNSS. A small breakthrough was achieved by WSG, but ended in a massive choke beneath a 20m pitch. After floods blocked the lower parts again, a dig started in 2007 by Tony Donovan, Roy Fellows and Paul Quill broke into the cave near the sink in 2008.
Tested to Llygad Cynon
Rhys Williams 2008
Brendan Marris 2012
WSG Bulletin Vol.7, No.1
Roy Morgan, 2007; R.Morgan,P.Quill 2009 in Pelobates 89