Cambrian Cave Registry

L:2500 V:145	Tunnel Cave Top NGR: SN 83694 16545 386 m.asl Powys , Northern Outcrop - West (Black Mountain)			map using leaflet map:
		Pothole
Access	Gated and Locked Entrance near to footpath. See caving.wales for current Access arrangements
Description	Pitches lead down to show cave, which is separated by an airlock gate
History	Dug open by SWCC, 1962
Hydrology
Conservation	SSSI: 0854 Mynydd Du (Mixed)
Gallery
^{Brendan Marris} 2013
Survey

References
SWCC nl 38, pp.6-10, Ann Williams, August week-end 1961 and Postscript [Blasting the shaft]
SWCC nl 42, pp.1-3, Clive Jones, The Tunnel Cave Project
Graham Wilton-Jones, Belfry Bulletin, 1978, Tunnel Cave - South Wales
Selected Caves of Britain and Ireland, 1997
Peter I.W.Harvey 2009 Tunnel Cave Exploration 1953-62
Cambrian Caving Council nl. Jul 2007, Bernie Woodley, Tunnel Cave Airlock
Brendan Marris Caves of South Wales
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Cambrian Cave Registry entry 282			© Caving Wales ⓗ Ogofa Cymru