The Oust (; br, Oud) is a river in

Brittany Brittany (; french: link=no, Bretagne ; br, Breizh, or ; Gallo: ''Bertaèyn'' ) is a peninsula, historical country and cultural area in the west of modern France, covering the western part of what was known as Armorica during the period ...

, France, right tributary of the Vilaine. It is long. Its source is in the hills between

Corlay Corlay (; ; Gallo: ''Corlaè'') is a commune in the Côtes-d'Armor department of Brittany in northwestern France. Population Inhabitants of Corlay are called ''corlaisiens'' in French. See also *Communes of the Côtes-d'Armor department ...

and

Quintin Quintin (; br, Kintin) is a commune in the Cotes-d'Armor department (Brittany region) in the northwest of France from Saint-Brieuc, the department capital. History The area around Quintin has been occupied since the Neolithic. Early Quintin ...

. It flows generally southeast, through the following ''

département In the administrative divisions of France, the department (french: département, ) is one of the three levels of government under the national level (" territorial collectivities"), between the administrative regions and the communes. Ninety ...

s'' and towns: *

Côtes-d'Armor The Côtes-d'Armor (, ; ; br, Aodoù-an-Arvor, ), formerly known as Côtes-du-Nord ( br, Aodoù-an-Hanternoz, link=no, ), are a department in the north of Brittany, in northwestern France. In 2019, it had a population of 600,582.

Uzel Uzel (; or Uzel-près-l'Oust) is a commune in the Côtes-d'Armor department in Brittany in northwestern France. It is about west-northwest of Rennes and north-northwest of Loudéac. The old school, in the centre of Uzel, was the scene of tor ...

Morbihan Morbihan ( , ; br, Mor-Bihan ) is a department in the administrative region of Brittany, situated in the northwest of France. It is named after the Morbihan (''small sea'' in Breton), the enclosed sea that is the principal feature of the coastl ...

: Rohan,

Josselin Josselin (; ) is a commune in the Morbihan department in Brittany in north-western France. History St Meriadek is said to have founded a chapel there during the 4th century. Much later Josselin became a stronghold of the House of Rohan. An ...

, Malestroit *

Ille-et-Vilaine Ille-et-Vilaine (; br, Il-ha-Gwilen) is a department of France, located in the region of Brittany in the northwest of the country. It is named after the two rivers of the Ille and the Vilaine. It had a population of 1,079,498 in 2019.

: Redon The Oust flows into the river Vilaine in Redon. The part of the Oust between Rohan and Redon has been made navigable for small ships, and forms part of the Canal de Nantes à Brest. The rivers Aff, Arz and

Ninian Ninian is a Christian saint, first mentioned in the 8th century as being an early missionary among the Pictish peoples of what is now Scotland. For this reason he is known as the Apostle to the Southern Picts, and there are numerous dedicatio ...

are among its tributaries.

References

Rivers of France Rivers of Brittany Rivers of Côtes-d'Armor Rivers of Ille-et-Vilaine Rivers of Morbihan Brittany region articles needing translation from French Wikipedia {{France-river-stub