The Authion is a long

river A river is a natural flowing watercourse, usually freshwater, flowing towards an ocean, sea, lake or another river. In some cases, a river flows into the ground and becomes dry at the end of its course without reaching another body of wate ...

in western

France France (), officially the French Republic ( ), is a country primarily located in Western Europe. It also comprises of Overseas France, overseas regions and territories in the Americas and the Atlantic Ocean, Atlantic, Pacific Ocean, Pac ...

located in the departments of

Indre-et-Loire Indre-et-Loire () is a department in west-central France named after the Indre River and Loire River The Loire (, also ; ; oc, Léger, ; la, Liger) is the longest river in France and the 171st longest in the world. With a length of , it ...

(

Centre-Val de Loire Centre-Val de Loire (, , ,In isolation, ''Centre'' is pronounced . ) or Centre Region (french: région Centre, link=no, ), as it was known until 2015, is one of the eighteen administrative regions of France. It straddles the middle Loire Valley ...

) and

Maine-et-Loire Maine-et-Loire () is a department in the Loire Valley in the Pays de la Loire region in Western France. It is named after the two rivers, Maine and the Loire. It borders Mayenne and Sarthe to the north, Loire-Atlantique to the west, Indre-e ...

(

Pays de la Loire Pays de la Loire (; ; br, Broioù al Liger) is one of the 18 regions of France, in the west of the mainland. It was created in the 1950s to serve as a zone of influence for its capital, Nantes, one of a handful of "balancing metropolises" (). ...

). It is a tributary of the river

Loire The Loire (, also ; ; oc, Léger, ; la, Liger) is the longest river in France and the 171st longest in the world. With a length of , it drains , more than a fifth of France's land, while its average discharge is only half that of the Rhône ...

on the right side. It flows into the Loire in

Sainte-Gemmes-sur-Loire Sainte-Gemmes-sur-Loire (, literally ''Sainte-Gemmes on Loire'') is a commune in the Maine-et-Loire department in western France. See also * Communes of the Maine-et-Loire department The following is a list of the 177 communes of the Maine-et- ...

, near Angers. Its longest tributaries are the Lathan and the Couasnon. The largest towns on the Authion are Bourgueil,

Mazé-Milon Mazé-Milon () is a commune in the Maine-et-Loire department of western France. The municipality was established on 1 January 2016 and consists of the former communes of Mazé and Fontaine-Milon.Brain-sur-l'Authion Brain-sur-l'Authion () is a former commune in the Maine-et-Loire department in western France. On 1 January 2016, it was merged into the new commune of Loire-Authion.Trélazé Trélazé () is a commune in the Maine-et-Loire department in western France. Population See also *Communes of the Maine-et-Loire department The following is a list of the 177 communes of the Maine-et-Loire department of France. The comm ...

and

Les Ponts-de-Cé Les Ponts-de-Cé () is a commune in the Maine-et-Loire department in western France. Les Ponts-de-Cé is a suburb of Angers. History In September 1432, during the Hundred Years' War, the routiers of Rodrigo de Villandrando, in the pay of Georg ...

. Its basin area is .Bassin versant de l’Authion
SAGE Authion

References

Rivers of France Rivers of Indre-et-Loire Rivers of Maine-et-Loire Rivers of Centre-Val de Loire Rivers of Pays de la Loire {{France-river-stub