Ouanne (river)

Ouanne
The Ouanne at Saint-Germain-des-Prés.
Country	France
Basin features
Main source	Burgundy
River mouth	Loing 47°57′12″N 2°46′50″E / 47.95333°N 2.78056°E / 47.95333; 2.78056 (Loing-Ouanne)Coordinates: 47°57′12″N 2°46′50″E / 47.95333°N 2.78056°E / 47.95333; 2.78056 (Loing-Ouanne)
Progression	Loing→ Seine→ English Channel
Basin size	950 km2 (370 sq mi)
Physical characteristics
Length	84 km (52 mi)
Discharge	Average rate: 4.8 m3/s (170 cu ft/s)

The Ouanne is an 84 km (52 mi) long river in central France, a right tributary of the Loing. Its source is near the small town Ouanne, about 20 km (12 mi) southwest of Auxerre. It flows generally northwest, and joins the Loing in Conflans-sur-Loing, near Amilly.

Its course crosses the following départements and towns: