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Oust River

Oust
Country France
Basin features
Main source Brittany
River mouth Vilaine
47°37′50″N 2°5′49″W / 47.63056°N 2.09694°W / 47.63056; -2.09694 (Vilaine-Oust)Coordinates: 47°37′50″N 2°5′49″W / 47.63056°N 2.09694°W / 47.63056; -2.09694 (Vilaine-Oust)
Progression VilaineAtlantic Ocean
Basin size 3,630 km2 (1,400 sq mi)
Physical characteristics
Length 137 km (85 mi)
Discharge
  • Average rate:
    25 m3/s (880 cu ft/s)

The Oust (Breton: Oud) is a river in Brittany, France, right tributary of the Vilaine. Its source is in the hills between Corlay and Quintin. It flows generally southeast, through the following départements and towns:

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 river Arz is among its tributaries.



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