The River Looe is a river in south-east Cornwall

Cornwall

Cornwall is a unitary authority and ceremonial county of England, within the United Kingdom. It is bordered to the north and west by the Celtic Sea, to the south by the English Channel, and to the east by the county of Devon, over the River Tamar. Cornwall has a population of , and covers an area of...

, which flows into the English Channel

English Channel

The English Channel , often referred to simply as the Channel, is an arm of the Atlantic Ocean that separates southern England from northern France, and joins the North Sea to the Atlantic. It is about long and varies in width from at its widest to in the Strait of Dover...

 at Looe

Looe

Looe is a small coastal town, fishing port and civil parish in the former Caradon district of south-east Cornwall, England, with a population of 5,280 . Looe is divided in two by the River Looe, East Looe and West Looe being connected by a bridge...

. It has two main branches, the East Looe River and the West Looe River.

The eastern tributary has its source near St Cleer

St Cleer

St Cleer is a civil parish and village in Cornwall, United Kingdom. The village is situated on the southeast flank of Bodmin Moor approximately two miles north of Liskeard....

 and flows south, passing close to the western outskirts of Liskeard

Liskeard

Liskeard is an ancient stannary and market town and civil parish in south east Cornwall, England, United Kingdom.Liskeard is situated approximately 20 miles west of Plymouth, west of the River Tamar and the border with Devon, and 12 miles east of Bodmin...

. The western tributary has its source near Dobwalls

Dobwalls

Dobwalls is a village in south-east Cornwall, United Kingdom. It is situated three miles west of Liskeard.The name is spelt Dubwalls on Bartholomew's map and Black's Guide of 1879....

.

South of Liskeard, the Looe Valley Line

Looe Valley Line

The Looe Valley Line is an community railway from Liskeard to Looe in Cornwall, United Kingdom, that follows the valley of the East Looe River for much of its course...

 railway follows the course of the river to Looe.

The lowest stretch of the rivers form the Looe Estuary

Looe Estuary

The Looe Estuary is an estuary in the southeastern part of Cornwall in south-west England, which leads to the mouth of the River Looe in Looe Bay.The town of Looe sits on the west and east side of the estuary.-External links:*...

and the location of the river's mouth is at coordinates 50.350°N 4.451°W