Torfaen
, Northern Outcrop - East (Morlais to Abergavenny)
map using leaflet map:
Sink
Cave
Access
Free access. The cave is in a doline on common land above Nant Maelor, Abersychan.
Description
The cave is dug out in the south corner of a large doline which takes two small streams. A tight vertical entrance leads to a large collapse chamber. 14m long and 9m wide. The stream sinks at the far end in sand and gravel. The entrance has now collapsed again.
History
Brynmawr CC, 1976
Hydrology
Traced in about 4 hours to Cwmavon Risings, and to Nant Maelor Risings