The River Barle runs from the Chains

Chains (geological site)

The Chains is the name given to the north-west plateau of Exmoor, Somerset, England. This plateau lies above the contour line, and includes the source of the River Barle....

 on northern Exmoor

Exmoor

Exmoor is an area of hilly open moorland in west Somerset and north Devon in South West England, named after the main river that flows out of the district, the River Exe. The moor has given its name to a National Park, which includes the Brendon Hills, the East Lyn Valley, the Vale of Porlock and ...

, in Somerset

Somerset

The ceremonial and non-metropolitan county of Somerset in South West England borders Bristol and Gloucestershire to the north, Wiltshire to the east, Dorset to the south-east, and Devon to the south-west. It is partly bounded to the north and west by the Bristol Channel and the estuary of the...

, England

England

England is a country that is part of the United Kingdom. It shares land borders with Scotland to the north and Wales to the west; the Irish Sea is to the north west, the Celtic Sea to the south west, with the North Sea to the east and the English Channel to the south separating it from continental...

 to join the River Exe

River Exe

The River Exe in England rises near the village of Simonsbath, on Exmoor in Somerset, near the Bristol Channel coast, but flows more or less directly due south, so that most of its length lies in Devon. It reaches the sea at a substantial ria, the Exe Estuary, on the south coast of Devon...

 at Exebridge

Exebridge

Exebridge is a village that lies on the border between Devon and Somerset, England. It lies at the confluence of the Barle and Exe rivers. Exebridge is named so because of the bridge over the River Exe that also marks the border between Devon and Somerset. It is located at ....

, Devon

Devon

Devon is a large county in southwestern England. The county is sometimes referred to as Devonshire, although the term is rarely used inside the county itself as the county has never been officially "shired", it often indicates a traditional or historical context.The county shares borders with...

. The river and the Barle Valley

Barle Valley

Barle Valley is a 104.2 hectare biological Site of Special Scientific Interest in Devon and Somerset, notified in 1997.The site includes the Somerset Wildlife Trust's Mounsey Wood Nature Reserve and Knaplock and North Barton SSSI notified in 1954...

 are both designated as biological Site of Special Scientific Interest.

On the Chains

Chains (geological site)

The Chains is the name given to the north-west plateau of Exmoor, Somerset, England. This plateau lies above the contour line, and includes the source of the River Barle....

 above Simonsbath

Simonsbath

Simonsbath is a village high on Exmoor in the English county of Somerset. It is the principal settlement in the Exmoor civil parish, which is the largest and most sparsely populated civil parish on Exmoor, covering nearly but with a population, at the time of the 2001 census, of 203 in 78...

 is a 3 acres (1.2 ha) reservoir known as Pinkery Pond. It was formed by damming the River Barle, in the 19th century by John Knight and his son, and was originally intended to be 7 acres (2.8 ha).