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Shakehole Dig


NGR: SN 85335 14545
289 m.asl

Powys , Northern Outcrop - Central (Penwyllt to Penderyn)
 map using leaflet map:
Sink Doline
Access Located on the slopes to the west of the disused railway line overlooking Rhogyr Isaf.
Description Collapse in Twrch Sandstone, with a low, wet dig...
History Roger Bryan, John Smith 1980; Nig Rogers
Hydrology Takes a small stream normally, but in wet weather it can become a major sink, as it takes all the water which flows from the quarry, crosses the track and runs down the railway line before running down the hillside. Probably feeds Pentwyn Farm Resurgence, perhaps via Ogof yr Ardd, but must traverse a lot of gritstone. Tests
Conservation
Gallery

Brendan Marris
2008
Gary Evans
2020
Survey
References
Catalogue of Speleological Sites...between...A4067...Pant Mawr Moor, Gary Evans (2021),p.110
Search for further records Browse registry map
Cambrian Cave Registry entry 1808
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