Ourse

River in France
Ourse is located in France
Ourse
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Ourse is located in Occitanie
Ourse
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LocationCountryFrancePhysical characteristicsSource  • locationPyrenees Mouth 
 • location
Garonne
 • coordinates
43°01′18″N 0°36′55″E / 43.0217°N 0.6153°E / 43.0217; 0.6153Length25.4 km (15.8 mi)Basin size139 km2 (54 sq mi)Basin featuresProgressionGaronne→ Gironde estuary→ Atlantic Ocean

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.

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

  1. ^ a b c d Sandre. "Fiche cours d'eau - L'Ourse (O00-0460)".
  2. ^ a b Géoportail
  3. ^ 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.
  4. ^ Sandre. "Fiche cours d'eau - Ruisseau de Salabe (O0060570)".
  5. ^ Sandre. "Fiche cours d'eau - L'Ourse de Sost (O0070500)".