Ourse
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 | |
|---|---|
.jpg.webp) 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°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 :
References
- Sandre. "Fiche cours d'eau - L'Ourse (O00-0460)".
- 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. "Fiche cours d'eau - Ruisseau de Salabe (O0060570)".
- Sandre. "Fiche cours d'eau - L'Ourse de Sost (O0070500)".