Ource

Upper reaches of the Ource Autricourt

The Ource is a river in France, which runs in Champagne -Ardenne and Burgundy. It rises on the plateau of Langres, in the municipality of Poinson -lès- Grancey, drained generally in a northwesterly direction and flows for 100 kilometers in Merrey -sur- Arce, just south of Bar -sur -Seine, a right tributary of the Seine. On their way the Ource crosses the Haute- Marne, Côte-d'Or and Aube.