Ogof y Darren Cilau, Ogof y Darren, Vic's Dig, Ogof Darren Cilau, Ogof Darren Ciliau, Daren Cilau
NGR: SO 20521 15301 399 m.asl
, Northern Outcrop - East (Morlais to Abergavenny)
map using leaflet map:
There is a very small entrance at ground level in a disused quarry behind the lime kiln.
A very difficult and arduous cave with a long, constricted entrance leading to extensive passages beyond. The furthest reaches of the cave reach the terminal sump which has been dived for 600m to Elm Hole in the Clydach Gorge.
J. Ellwood, 1818. Explored by BNS, 1957. Extended CSS/SMCC, 1964 & 1984, CDG in 1985-87,
Bones associated with possible Upper Palaeolithic settlement
SSSI: 0080 Mynydd Llangatwg (Mixed)
CSS Records (19), 1992
SWCC Newsletter 27, 3-7, 1959. History of discovery and description