Ource

The Ource (French: [uʁs]) is a 100 km (62 mi) long river in northeastern France, a right tributary of the river Seine.^[1] Its source is in the Haute-Marne department, 2 km south of Poinson-lès-Grancey. It flows generally northwest. It joins the Seine at Bar-sur-Seine.

Ource
The Ource at Autricourt.
Location
Country	France
Physical characteristics
Source
• location	Near Poinson-lès-Grancey
• coordinates	47°41′24″N 04°58′41″E
• elevation	400 m (1,300 ft)
Mouth
• location	Seine
• coordinates	48°05′46″N 04°22′51″E
• elevation	156 m (512 ft)
Length	100 km (62 mi)
Basin size	736 km2 (284 sq mi)
Discharge
• average	8.6 m3/s (300 cu ft/s)
Basin features
Progression	Seine→ English Channel

Its course crosses the following departments and communes:

• Haute-Marne: Poinson-lès-Grancey
• Côte-d'Or: Recey-sur-Ource, Brion-sur-Ource, Autricourt, Grancey-sur-Ource
• Aube: Essoyes, Celles-sur-Ource, Bar-sur-Seine