The River Dunsop is a river in the Forest of Bowland

Forest of Bowland

The Forest of Bowland, also known as the Bowland Fells, is an area of barren gritstone fells, deep valleys and peat moorland, mostly in north-east Lancashire, England. A small part lies in North Yorkshire, and much of the area was historically part of the West Riding of Yorkshire...

 in Northern England

Northern England

Northern England, also known as the North of England, the North or the North Country, is a cultural region of England. It is not an official government region, but rather an informal amalgamation of counties. The southern extent of the region is roughly the River Trent, while the North is bordered...

. It flows into the River Hodder

River Hodder

The River Hodder is a river in Lancashire, England. The river is a County Biological Heritage Site.It rises on White Hill and flows for approximately 23 miles to the River Ribble, of which it is the largest tributary...

 at Dunsop Bridge

Dunsop Bridge

Dunsop Bridge is a village within the Ribble Valley borough of Lancashire, England, situated north-west of Clitheroe, south-east of Lancaster and east of Skipton. It is in the civil parish of Bowland Forest High....

.

It begins at the confluence of the Brennand River and Whitendale River, both of which rise high up in the surrounding moorland

Moorland

Moorland or moor is a type of habitat, in the temperate grasslands, savannas, and shrublands biome, found in upland areas, characterised by low-growing vegetation on acidic soils and heavy fog...

. It then flows through the steep-sided Dunsop Valley before meeting the Hodder. The Thirlmere Aqueduct

Thirlmere Aqueduct

The Thirlmere Aqueduct is part of a water supply system built by the Manchester Corporation Water Works between 1890 and 1925.The aqueduct was built to carry approximately per day of water from Thirlmere Reservoir to Manchester. The construction of the reservoir and aqueduct was authorised by the...

, which carries water from the Lake District

Lake District

The Lake District, also commonly known as The Lakes or Lakeland, is a mountainous region in North West England. A popular holiday destination, it is famous not only for its lakes and its mountains but also for its associations with the early 19th century poetry and writings of William Wordsworth...

 to Manchester

Manchester

Manchester is a city and metropolitan borough in Greater Manchester, England. According to the Office for National Statistics, the 2010 mid-year population estimate for Manchester was 498,800. Manchester lies within one of the UK's largest metropolitan areas, the metropolitan county of Greater...

, runs alongside.

On 8 August 1967 Dunsop Valley entered the UK Weather Records

UK Weather Records

The UK Weather Records note the most extreme weather ever recorded in the United Kingdom, such as the most and fewest hours of sunshine and highest wind speed.-Temperature:-Rainfall:...

 with the Highest 90-min total rainfall at 117 mm. As of July 2006 this record remains.