Ain (river)

The Ain (in Franco-Provençal: En) is a river in eastern France. It is a right tributary of the Rhône river. It gave its name to the French department of Ain.
Geography.
The Ain river has a length of , and a drainage basin with an area of .
Its average yearly discharge (volume of water which passes through a section of the river per unit of time) is at Chazey-sur-Ain in the Ain department.
Course.
The source of the Ain is a "karst spring" (a spring that is part of a karst system) in the Jura mountains, between the Conte an the La Favière "communes" (Jura department), at an altitude of about . From here, the Ain flows to the south.
The Ain river flows through 2 regions, 2 departments and 66 "communes". It flows through the following "communes", among others:
Finally, it flows into the Rhône river in the "commune" of Saint-Maurice-de-Gourdans, on the border with the Isère department.
Main tributaries.
The main tributaries of the Ain river are:
Left tributaries:
Right tributaries: