Arros (river)

Arros
The Arros in Saint-Sever-de-Rustan
Location
Country	France
Physical characteristics
Source
• location	Baronnies of Pyrenees
Mouth
• location	Adour
• coordinates	43°39′44″N 0°1′41″W
Length	130 km (81 mi)
Basin size	947 km2 (366 sq mi)
Discharge
• average	9 m3/s (320 cu ft/s)
Basin features
Progression	Adour→ Atlantic Ocean

The Arros (French pronunciation: [aʁɔs]; Occitan: Arròs) is a right tributary of the Adour, in the Southwest of France. It is 130.2 km (80.9 mi) long.

Name

The name Arros is based on the root Arr- 'stone' and the suffix -os.

Geography

The Arros rises in the Baronnies of Pyrenees, southeast of Bagnères-de-Bigorre, below the Signal de Bassia (1 921 m).

It flows north through a narrow valley defended by the castle of Mauvezin and the bastide of Tournay. It joins the Adour before it turn west, upstream from Riscle.

Départements and towns

• Hautes-Pyrénées: Bourg-de-Bigorre, Tournay, Chelle-Debat
• Gers: Montégut-Arros, Villecomtal-sur-Arros, Plaisance.

Main tributaries

• (L) Esqueda, from Banios
• (L) Luz, from Lies
• (L) Arredou, in Tournay
• (L) Arret Daban or Arret Devant,
• (L) Arret Darré, in Gonez
• (R) Bouès, from Capvern