|Main source||Cottian Alps|
|Length||83 km (52 mi)|
|Progression||Durance→ Rhône→ Mediterranean Sea|
Its rises at the Col de Longet, in the Cottian Alps on the border with Italy. It flows generally southwest, through Saint-Paul-sur-Ubaye, Jausiers and Barcelonnette. It flows into the Lac de Serre-Ponçon (which is fed and drained by the Durance) near La Bréole.
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