Country France River mouth Garonne Length 25.4 km (15.8 mi) | Main source Pyrenees Basin size 139 km (54 sq mi) | |
 | ||
Progression Garonne→ Atlantic Ocean | ||
Indus valley civilization crash course world history 2
L'Ourse, or Ourse de Ferrère, is a French river in the Pyrenees, a tributary of la Garonne.
Contents
- Indus valley civilization crash course world history 2
- River story features of a river course
- Geography
- References
It forms the Barousse valley.
River story features of a river course
Geography
According to the Sandre, its mother-course is the ruisseau de Seuès which begins at 1,770 m high, NNW of the lac de Crouès.
After a few km, it is joined left by the Salabe runlet and then becomes l'Ourse de Ferrère, which joins l'Ourse de Sost at Mauléon-Barousse and then becomes l'Ourse.
It joins the Garonne left bank at 441 m high in the commune of Loures-Barousse.
The area covered « Ruisseau de Seuès-Ourse de Ferrère-Ourse » is 25,4 km long, for a watershed of 139 km wide.
L'Ourse runs through 13 communes in the Hautes-Pyrénées, all located in the canton of Mauléon-Barousse, from high to low : Ferrère, Ourde, Mauléon-Barousse, Troubat, Bramevaque, Gembrie, Antichan, Créchets, Anla, Aveux, Sarp, Izaourt, et Loures-Barousse.
It has 20 tributaries recorded by the Sandre, of which two are more than 5 km long :