Ourse
L'Ourse, or Ourse de Ferrère, is a French river in the Pyrenees, a tributary of la Garonne.
Ourse | |
---|---|
![]() Confluence of the Ourse de Sost (left) and the Ourse de Ferrère (right) at Mauléon | |
Location | |
Country | France |
Physical characteristics | |
Source | |
• location | Pyrenees |
Mouth | |
• location | Garonne |
• coordinates | 43.0217°N 0.6153°E |
Length | 25.4 km (15.8 mi) |
Basin size | 139 km2 (54 sq mi) |
Basin features | |
Progression | Garonne→ Gironde estuary→ Atlantic Ocean |
It forms the Barousse valley.
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 area covered « Ruisseau de Seuès-Ourse de Ferrère-Ourse » is 25,4 km long,[1] for a watershed of 139 km wide.[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 :
References
- Sandre. "L'Ourse (O00-0460)". Retrieved 15 July 2011.
- Géoportail
- Superficie du bassin versant « L'Ourse du confluent de l'Ourse de Sost au confluent de la Garonne (O008) » sur Sandre. "(O0081010)". Retrieved 15 July 2011.
- Sandre. "Ruisseau de Salabe (O0060570)". Retrieved 16 July 2011.
- Sandre. "L'Ourse de Sost (O0070500)". Retrieved 16 July 2011.