Fell Beck is a stream located near the foot of

Ingleborough Ingleborough () is the second-highest mountain in the Yorkshire Dales, England. It is one of the Yorkshire Three Peaks (the other two being Whernside and Pen-y-ghent), and is frequently climbed as part of the Three Peaks walk. A large part o ...

, in the

Yorkshire Dales National Park The Yorkshire Dales National Park is a national park in England covering most of the Yorkshire Dales. Most of the park is in North Yorkshire, with a sizeable area in Westmorland (Cumbria) and a small part in Lancashire. The park was designat ...

. It is notable for the fact that it runs into

Gaping Gill Gaping Gill (also known as Gaping Ghyll) is a natural cave in North Yorkshire, England. It is one of the unmistakable landmarks on the southern slopes of Ingleborough – a deep pothole with the stream Fell Beck flowing into it. After fallin ...

, the second-largest natural cave shaft in the UK (after Titan). As it falls down the shaft for 110 metres it is the tallest unbroken waterfall in the UK. It later emerges as Clapham Beck in Beck Head Cave, adjacent to

Ingleborough Cave Ingleborough Cave (formerly known as Clapham Caves) is a show cave close to the village of Clapham in North Yorkshire, England adjacent to where the water from Gaping Gill resurges. That part of the cave which is open to the public follows a fo ...

. This was confirmed by cave divers in 1983, and by fluorescent dye tests many years before. At times it is blocked off by a temporary

dam A dam is a barrier that stops or restricts the flow of surface water or underground streams. Reservoirs created by dams not only suppress floods but also provide water for activities such as irrigation, human consumption, industrial use ...

to allow members of the public to descend the shaft on a winch. Beyond the village of

Clapham Clapham () is a suburb in south west London, England, lying mostly within the London Borough of Lambeth, but with some areas (most notably Clapham Common) extending into the neighbouring London Borough of Wandsworth. History Early history T ...

, Clapham Beck flows into the

River Wenning The River Wenning is a tributary of the River Lune, flowing through North Yorkshire and Lancashire. The Wenning is formed from the confluence of Clapham Beck, which rises above Clapham, and Austwick Beck, which rises in Crummackdale above Aust ...

, which in turn flows into the

River Lune The River Lune (archaically sometimes Loyne) is a river in length in Cumbria and Lancashire, England. Etymology Several elucidations for the origin of the name ''Lune'' exist. Firstly, it may be that the name is Brittonic in genesis and deriv ...

and thence to the

Irish Sea The Irish Sea or , gv, Y Keayn Yernagh, sco, Erse Sie, gd, Muir Èireann , Ulster-Scots: ''Airish Sea'', cy, Môr Iwerddon . is an extensive body of water that separates the islands of Ireland and Great Britain. It is linked to the Ce ...

References

{{authority control Yorkshire Dales Lune catchment Rivers of North Yorkshire