Savoureuse

The Savoureuse is a river in eastern France; it is the principal river running through the Territoire de Belfort.
Geography.
The Savoureuse 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) has been measured in three places:
Course.
The Savoureuse starts on the "Ballon d'Alsace", southern Vosges Mountains, in the "commune" of Lepuix, Territoire de Belfort department, at an elevation of about .
It flows from north to south through the Territoire de Belfort department. At Nommay, the river gets into the Doubs department where it joins, in the "commune" of Étupes near the city of Sochaux, the "Allaine" river, a tributary of the Doubs river at about of altitude.
The Savoureuse flows through one region (Bourgogne-Franche-Comté), 2 departments and 18 "communes":
Main tributaries.
The main tributaries of the Savoureuse river are:
Left tributaries:
Right tributaries: