Vanne (river)

The Vanne is a river in eastern France that flows through the Aube and Yonne departments, in the Grand Est and Bourgogne-Franche-Comté regions. The Vanne is a right tributary of the Yonne river.
Geography.
The Vanne river has a length of , and a drainage basin with an area of approximately .
Its average yearly discharge (volume of water which passes through a section of the river per unit of time) is at Pont-sur-Vanne in the Yonne department.
Course.
The watershed of the Vanne is in the Aube and Yonne departments. It starts, an altitude of , under the church of the "commune" of Fontvannes. a small town that is at about to the west of the city of Troyes, the capital of the Aube department. It then flows to the southwest and gets into the Yonne department.
In Sens. the Vanne joins, by its right side, the Yonne river at an altitude of .
The Vanne flows through the following "communes":
Main tributaries.
Most of the tributaries of the Vanne are small streams; the only important tributaries (all of them left tributaries) are: