L:675
V:81

Crescent Cave


NGR: SO 12940 15128
541 m.asl

Powys , Northern Outcrop - East (Morlais to Abergavenny)
 map using leaflet map:
Sink Cave
Access On open moorland, rock face not far below top of doline complex, 200m ESE of Chartist Cave.
Description Water sinks into boulder chamber with grit roof to cresent shaped chamber where a shaft led into passages on several levels.
History SVCC, 1971; Brynmawr CC, 1997, In 2009 the scaffolded shaft in the floor of the entrance chamber was full of rubble; there appeared to have been a collapse of the right hand wall which filled the shaft, which had been shored with plumbing pipes rather than scaffolding. The cave awaits reopening...
Hydrology Traced to Sion Sheffrey after 48 hrs Tests
Conservation SSSI: 3159 Mynydd Llangynidr(Geological)
Gallery

Brendan Marris
2008
Martin Laverty
2025
Survey
BCC, 2000
References
SVCC: Trefil Caves in Brief, 1974
Caves and Caving 76, Summer 1997, p.13, Under Llangynidr
Phil Jayne, Crescent Cave: a Brynmawr Caving Club dig, Caves & Caving, 79, pp.8-9
SVCC nl.8b, Sept 1974: Trefil Caves in Brief, p.17
BrynmawrCC Jnl.1997, pp.35-50 Phil Jayne, Mark Wilton-Jones, Barry Burn
Search for further records Browse registry map
Cambrian Cave Registry entry 781
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