The Arz () is a long river in the

Morbihan The Morbihan ( , ; ) is a departments of France, department in the administrative region of Brittany (administrative region), Brittany, situated in the northwest of France. It is named after the Gulf of Morbihan, Morbihan (''small sea'' in Breton ...

département In the administrative divisions of France, the department (, ) is one of the three levels of government under the national level (" territorial collectivities"), between the administrative regions and the communes. There are a total of 101 ...

'', northwestern France. Its source is at Plaudren. It flows generally east-southeast. It is a

right tributary A tributary, or an ''affluent'', is a stream or river that flows into a larger stream ('' main stem'' or ''"parent"''), river, or a lake. A tributary does not flow directly into a sea or ocean. Tributaries, and the main stem river into which the ...

of the

Oust The Oust (; ) is a river in Brittany, France, right tributary of the Vilaine. It is long. Its source is in the hills between Corlay and Quintin. It flows generally southeast, through the following ''départements'' and towns: * Côtes-d'Armo ...

into which it flows at Saint-Jean-la-Poterie, near

Redon Redon (; ) is a commune in the Ille-et-Vilaine department in Brittany in northwestern France. It is a sub-prefecture of the department. Geography Redon borders the Morbihan and Loire-Atlantique departments. It is situated at the junction of ...

Communes along its course

This list is ordered from source to mouth: Plaudren,

Monterblanc Monterblanc (; ) is a commune in the Morbihan department and Brittany region of north-western France. Geography The river Arz forms most of the commune's northern border. Population In French the inhabitants of Monterblanc are known as ''Mo ...

, Elven, Le Cours, Larré, Molac, Pluherlin, Malansac, Saint-Gravé,

Peillac Peillac (; ; Gallo language, Gallo: ''Peilla'') is a Communes of France, commune in the east of Morbihan Departments of France, department of Brittany (administrative region), Brittany in north-western France. Geography The canal de Nantes à B ...

Saint-Jacut-les-Pins Saint-Jacut-les-Pins (; ) is a Communes of France, commune in the Morbihan Departments of France, department of Brittany (administrative region), Brittany in north-western France. Geography The river Arz (river), Arz forms all of the commune's n ...

, Saint-Vincent-sur-Oust, Allaire, Saint-Perreux, Saint-Jean-la-Poterie

References

Rivers of France Rivers of Brittany Rivers of Morbihan {{France-river-stub