Ogof Cynnes

Cambrian Cave Registry Entry 784
Location SO 14088 15408 , Powys , Northern Outcrop - East (Morlais to Abergavenny)
Elevation (m) 524
Length (m)
Depth (m)
Access There is a small entrance on the East side of a long oval doline. The entrance is very difficult to find, being on open moorland. Best approached from Blaen Onneu Quarry. Head roughly West towards the Trig. Point and then from there turn slightly South of West for about 800 metres to the head of a large dry valley. There is a small rock outcrop and cairn on this side of the valley with two oblong shaped shakeholes nearby. The larger of the shakeholes contains the entrance.
Description An interesting and sporty cave which is dry but exceedingly muddy. Parts of the cave are very arduous. A series of rifts, squeezes and pots lead to a main chamber 10m high with passages leading off.
Survey M.Farr & I.Homes, 1968Descent 112
History HCC 1967; M.Farr, March 1968; Easter series, Ben Lovett et al., MCC, 1993
Bibliography SWCC Newsletter no. 66, Farr,M., pages 28-31 (1970) Cave Potential on Llangynidr Mountain
Descent 112
Caves of South Wales, Stratford, T. , 1995
A Caver's View of the Clydach River (Cwmbran Caving Club, 1986), Schuurmans, T.
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