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Swallow Hole


NGR: SN 82459 16151
473 m.asl

Powys , Northern Outcrop - West (Black Mountain)
 map using leaflet map:
Sink
Access Sink in big shakehole
Description In the gritstone, draining a peat bog
History
Hydrology Tests
Conservation
Survey
References
BCRA Transactions, Volume 4, No's 1 & 2, March 1977, p.307
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Cambrian Cave Registry entry 237
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