Yonne River

Yonne
The Yonne in Auxerre
Country	France
Basin features
Main source	Morvan 730 m (2,400 ft)
River mouth	Seine 48°23′15″N 2°57′30″E / 48.38750°N 2.95833°E / 48.38750; 2.95833 (Seine-Yonne)Coordinates: 48°23′15″N 2°57′30″E / 48.38750°N 2.95833°E / 48.38750; 2.95833 (Seine-Yonne)
Progression	Seine→ English Channel
Basin size	10,887 km2 (4,203 sq mi)
Physical characteristics
Length	292 km (181 mi)
Discharge	Average rate: 95 m3/s (3,400 cu ft/s)

The Yonne is a river in France, left tributary of the Seine. It is 292 kilometres (181 mi) long. The river gives its name to the Yonne département. It rises in the Nièvre département, in the Morvan hills near Château-Chinon. It flows into the river Seine in Montereau-Fault-Yonne.

The Yonne flows through the following départements and towns:

The main tributaries of the Yonne are the Vanne, the Armançon, the Serein and the Cure.