Arz (river)

The Arz (Breton: Aer) is a 66.4 km (41.3 mi) long river in the Morbihan département, northwestern France. Its source is at Plaudren. It flows generally east-southeast. It is a right tributary of the Oust into which it flows at Saint-Jean-la-Poterie, near Redon.

Flows through: France.

River data from Wikidata (CC0); lengths normalised to a common unit.