Aveyron (river)

The Aveyron () 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 and a drainage basin with an area of .
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 .
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 .
The Aveyron passes through the departments and towns of:
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 of altitude.
Main tributaries.
The main tributaries of the Aveyron are:
Left tributaries:
Right tributaries: