Arz River

Arz
Country	France
Physical characteristics
Main source	Plaudren 130 m (430 ft) 47°44′35″N 02°43′52″W / 47.74306°N 2.73111°W / 47.74306; -2.73111
River mouth	Oust 2 metres (6.6 ft) 47°39′21″N 02°06′40″W / 47.65583°N 2.11111°W / 47.65583; -2.11111Coordinates: 47°39′21″N 02°06′40″W / 47.65583°N 2.11111°W / 47.65583; -2.11111
Length	66.5 km (41.3 mi)
Discharge	Average rate: 2.26 m3/s (80 cu ft/s)
Basin features
Progression	Oust→ Vilaine→ Atlantic Ocean
Basin size	270 km2 (100 sq mi)

The Arz is a 66.5 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.

This list is ordered from source to mouth: Plaudren, Monterblanc, Elven, Le Cours, Larré, Molac, Pluherlin, Malansac, Saint-Gravé, Peillac, Saint-Jacut-les-Pins, Saint-Vincent-sur-Oust, Allaire, Saint-Perreux, Saint-Jean-la-Poterie

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