|Mouth||Confluence with River Lune|
For several kilometres near the start of its course, the water flows into the Ease Gill Cave System, part of The Three Counties System, the longest cave system in Britain (and 26th longest in the world) via 14 major sink holes, to resurge at a major spring at Leck Beck Head.
The rising of Leck Beck Head  The overflow for this rising, Witches Cave (Yorkshire), has been dived through a 300m sump into Witches II. A dry entrance was dug into Witches II from the surface in 2010.was dived extensively in the 1980s and required underwater digging and the use of an air chisel to make progress.
|This Lancashire location article is a stub. You can help Wikipedia by expanding it.|
|This Cumbria location article is a stub. You can help Wikipedia by expanding it.|
|This article related to a river in England is a stub. You can help Wikipedia by expanding it.|