Aveyron (river)

Aveyron L'Aveyron  (French)
15th-century bridge at Belcastel
Location
Country	France
Physical characteristics
Source
- location	Massif Central
Mouth
- location	Tarn
- coordinates	44°5′13″N 1°16′0″E
Length	291 km (181 mi)
Basin size	5,300 km2 (2,000 sq mi)
Discharge
- average	57 m3/s (2,000 cu ft/s)
Basin features
Progression	Tarn→ Garonne→ Atlantic Ocean

The Aveyron (Occitan: Avairon) is a river in southern France. It is a tributary of the Tarn river. The Aveyron department is named after this river.

Geography

The Aveyron river has a length of 291 kilometres (180.8 miles) and a drainage basin with an area of 5,170 square kilometres (1,996 square miles).

Its discharge (volume of water which passes through a section of the river per unit of time) has been observed from 1914 to 2017 in Piquecos, a commune of the Tarn-et-Garonne department close to the city of Montauban near the confluence with the Tarn river. Its average yearly discharge at Piquecos is 53.10 cubic metres per second (1,875 cubic feet per second).

Average monthly discharge (m³/s) at Piquecos

Course

The source of the Aveyron is in southern Massif Central, near the commune of Sévérac-le-Château, in the Aveyron department, at an altitude of 735 metres (2,411 feet).

The Aveyron passes through the departments and towns of:

• Aveyron : Sévérac-le-Château, Laissac, Rodez, Villefranche-de-Rouergue, Najac
• Tarn : Penne
• Tarn-et-Garonne : Saint-Antonin-Noble-Val, Bruniquel, Montricoux, Nègrepelisse, Piquecos

The Aveyron river flows through 62 communes. Three communes have the name of the river: Agen-d'Aveyron, Gaillac-d'Aveyron, Clairvaux-d'Aveyron.

Finally, it flows into the Tarn river to the nortwest of Montauban, between Lafrançaise and Villemade, in the Tarn-et-Garonne department, at 71 metres (233 feet) of altitude.

Main tributaries

The main tributaries of the Aveyron are:

Left tributaries:

• Viaur - 168.2 kilometres (104.5 miles)
• Cérou - 87.1 kilometres (54.1 miles)
• Vère - 53.2 kilometres (33.1 miles)
• Serène de Sanvensa - 32.2 kilometres (20.0 miles)

Right tributaries:

• Alzou - 43.9 kilometres (27.3 miles)
• Bonnette - 24.9 kilometres (15.5 miles)
• Lère - 45.1 kilometres (28.0 miles)
• Serre - 29.4 kilometres (18.3 miles)

Gallery

• 
  Source of the Aveyron.
• 
  Aveyron river in Najac.
• 
  The Aveyron in Villefranche-de-Rouergue.
• 
  The Aveyron river near Piquecos.
• 
  Bridge over the Aveyron in Montrozier.

Related pages

• List of rivers of France

Other websites

• Banque Hydro - Station O5882510 - l'Aveyron à Piquecos Archived 2015-02-19 at the Wayback Machine (in French)