Arz (river)

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Oust River Drainage Basin map-fr.svg
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 66.4 km (41.3 mi)
  • Average rate:
    2.26 m3/s (80 cu ft/s)
Basin features
Progression OustVilaineAtlantic Ocean
Basin size 270 km2 (100 sq mi)

The Arz is a 66.4 km (41.3 mi) long river in the Morbihan département, northwestern France.[1] 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.

Communes along its course[edit]

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



  1. ^ Sandre. "Fiche cours d'eau - Arz (J88-0300)".