Viaur

The Viaur is a river in southern France, left tributary of the Aveyron river. It flows through the Aveyron, Tarn and Tarn-et-Garonne departments.

Viaur
Length168 km (104 mi)

Geography

The Viaur river has a length of 168.2 km (104.5 mi) and a drainage basin with an area of 1,559 km2 (602 sq mi).[1]

Its discharge (volume of water which passes through a section of the river per unit of time) has been observed from 1937 to 2017 in Laguépie, a commune of the Tarn-et-Garonne department near the confluence with the Aveyron river. Its average yearly discharge at Laguépie is 14.70 m3/s (519 cu ft/s).[2]

Average monthly discharge (m3/s) at Laguépie[2]

Course

The Viaur river starts on the sides of the Puech del Pal in the commune Vézins-de-Lévézou, in the Aveyron department, at an altitude of 1,070 m (3,510 ft).[3]

The Viaur passes through the departments and towns of:

The Viaur river flows through 30 communes and two of them have the name of the river: Sainte-Juliette-sur-Viaur and Saint-Just-sur-Viaur, both in the Aveyron department.[1]

Finally, it flows into the Aveyron river in the commune of Laguépie, in the Tarn-et-Garonne department, at 155 m (509 ft) of altitude.[4]

Main tributaries

The main tributaries of the Viaur are:

Left tributaries:

  • Céor - 55.9 km
  • Vioulou - 33.1 km

Right tributaries:

  • Lézert - 39 km
  • Lieux - 25.3 km
  • Jaoul - 22.5 km

Gallery

Related pages

References

  1. 1.0 1.1 "Le Viaur (O5--0290)" (in français). SANDRE - Portail national d'accès aux référentiels sur l'eau. Retrieved 17 August 2017.
  2. 2.0 2.1 "Le Viaur à Laguépie" (in français). Banque Hydro. Archived from the original on 5 October 2016. Retrieved 17 August 2017.
  3. "Source du Viaur" (in français). Géoportail. Retrieved 17 August 2017.
  4. "Confluence du Viaur" (in français). Géoportail. Retrieved 17 August 2017.