The Ourse, or Ourse de Ferrère, is a French river in the Pyrenees, a tributary of the Garonne. It is 25.4 km (15.8 mi) long.[1] It forms the Barousse valley.

Ourse
Confluence of the Ourse de Sost (left) and the Ourse de Ferrère (right) at Mauléon
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Location
Country	France
Physical characteristics
Source
• location	Pyrenees
Mouth
• location	Garonne
• coordinates	43°01′18″N 0°36′55″E
Length	25.4 km (15.8 mi)
Basin size	139 km2 (54 sq mi)
Basin features
Progression	Garonne→ Gironde estuary→ Atlantic Ocean

Geography

According to the Sandre, its mother-course is the ruisseau de Seuès[1] which begins at 1,770 m high, NNW of the lac de Crouès.[2]

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.[2]

The stream length of the path « Ruisseau de Seuès-Ourse de Ferrère-Ourse » is 25.4 km,[1] for a watershed of 139 km².[3]

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,[1] of which two are more than 5 km long :

• the Salabe, 6.0 km, left bank,[4]
• l'Ourse de Sost, 12,4 km, right bank.[5]

References

На других языках

[de] Ourse