The Vanne is a river in France, a right tributary of the Yonne. It flows through the departments of Aube and Yonne, in the Grand Est and Bourgogne-Franche-Comté regions, respectively.
Geography:
The river rises near Fontvannes in the Aube department. It flows generally west-southwest.
Course:
The Vanne flows through the following communes:
- Aube: Fontvannes, Bucey-en-Othe, Estissac, Dierrey-Saint-Julien, Villemaur-sur-Vanne
- Yonne: Theil-sur-Vanne, Villiers-Louis, Malay-le-Petit, Pont-sur-Vanne, Sens
Hydrology:
The Vanne's flow regime is primarily pluvial (rainfall-dependent). Its waters are used for drinking water supply in the Paris region.
Tributaries:
The Vanne receives several small tributaries along its course.
Significance:
The Vanne is significant as a source of potable water for the Paris metropolitan area. Its water is extracted and treated before being distributed. The river valley is also of agricultural importance.