Cambrian Cave Registry

L:1608 V:	Ogof Tarddiad Rhymney, Ogof Tardiadd Rhymney, Ogof Tardiardd Rhymney, Cave Source of the Rhymney NGR: SO 08511 14117 561 m.asl Powys , Northern Outcrop - East (Morlais to Abergavenny)				map using leaflet map:
			Cave
Access	The cave is located in the Cwar Yr Ystrad quarries, which are currently not being operated. The road from Trefil is private from the end of the village and will be gated at weekends and after the current quarry stops operating.
Description	The cave is located at the bottom of the quarry face in near the centre of the Westernmost quarry. The entrance is generally filled with a drystone wall and drops into a large passage. The cave is both large and extensive passing boulder chokes to lead to a final chamber from where the small stream flows in a small passage that eventualy becomes too low to follow.
History	GOCyF 1993?; extended UBSS, 2011
Hydrology	Lycopodium spore tested to Rhymney Risings				Tests
Conservation	SSSI: 0298 Cwar yr Ystrad a Cwar Blaen Dyffryn (Geological)	Biological records
Gallery
^{Brendan Marris} 2011
Survey
GOCAF
UBSS extension (2011)
References
Caves & Caving 70, p.9, 1995, Ogof Tardiadd Rhymney
Caves and Caving 76, Summer 1997, pp.12-13, Ogof Tardiardd Rhymney extensions
SWCC nl 117, pp.12-13, Julian Carter, Ogof Tarddiad Rhymney
UBSS nl ser.3(11) pp.11-13, Dickon Morris, 2011, Desperate squeezes and uninspiring
Descent 224 p.13, Dickon Morris, Tarddiad Rhymney extends into shale
Brendan Marris Caves of South Wales
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Cambrian Cave Registry entry 1604				© Caving Wales ⓗ Ogofa Cymru