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Nedern Brook


NGR: ST 4860 8880
16 m.asl

Monmouthshire , South East Wales
map using leaflet map:
Sink
Access Through the fields to the North of Caldicot Castle.
Description Parts of the bed were concreted in 1884 as it was thought to be a source of the great Spring in the Severn Tunnel, previously the Nedern had been dry for more than 8Km above the tunnel. There is a buried channel in the Nedern Brook at least 9m deep.
History
Hydrology Tests
Conservation
Survey
References
The Geology of the country around Monmouth and Chepstow (1960), Trotter.
Oldham, T. Caves of the South Eastern Outcrop
Cambrian Cave Registry entry 1217
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