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Sinks


NGR: SN 97860 09656
319 m.asl

Rhondda Cynon Taff , Northern Outcrop - Central (Penwyllt to Penderyn)
 map using leaflet map:
Sink
Access On common land.
Description A whole line of minor sinks and solution holes along the axis of the Sychbant Trough. All are floored with loose cobbles and some have been dug here and there. Ogof 'four and a half' contains a pool halfway between Ogof Fawr and Ogof Fechan, which rises and falls when the weather changes.
History
Hydrology
Conservation
Gallery

Brendan Marris
2012
Survey
References
WSG Bulletin 7, 1. Discussion of Geology.
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Cambrian Cave Registry entry 702
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