Cambrian Cave Registry

L:1500 V:85	Ogof Hesp Alyn, OHA, Cave of the Barren Alyn NGR: SJ 19195 65539 200 m.asl Flintshire , North Wales				map using leaflet map:
estavelle			Cave
Access	Gated though not usually locked. See under Alyn Valley and Minera caves at caving.wales for current Access arrangements
Description	The entrance is an 8m pitch leading to phreatic cave that resurged at the entrance until mining lowered the water table. A major North Wales system with a vertical range of 85m.
History	1973 NWCC
Hydrology	Can flood throughout in high water conditions, with water spouting out of the entrance.				Tests
Conservation	SSSI: 0241 Alyn Valley Woods and Alyn Gorge Caves	GCR: 569	Biological records
Gallery
^{Cris Ebbs} 1974	^{Ian Adams}
Survey
Appleton 1989
References
Logbook 1 (1964-74), Jarratt,A.R.p.147-150, dig and early exploration
BCRA Transactions 1(1), Appleton, P (1974) pp.29-42 Subterranean courses of the River Alyn, including Ogof Hesp Alyn, North Wales
Belfry Bulletin, 421, Dec 1983, Trevor Hughes, Ogof Hesp Alyn
Selected Caves of Britain and Ireland, 1997
The Caves of North East Wales, Ebbs, Cris, June 2000
Eldon Pothole Club Newsletter, Jan-Mar 2009. Mark Harrison, Selected Caves and Mines of North East Wales
Cris Ebbs Caves of North Wales
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Cambrian Cave Registry entry 1391				© Caving Wales ⓗ Ogofa Cymru