Armançon

The Armançon is a river in France. It is a right tributary of the Yonne river. It flows mostly through the Bourgogne-Franche-Comté region.

Eight communes have the name of the river in their names: Aisy-sur-Armançon, Argenteuil-sur-Armançon, Brienon-sur-Armançon, Chailly-sur-Armançon, Montigny-sur-Armançon, Pacy-sur-Armançon, Perrigny-sur-Armançon, Saint-Martin-sur-Armançon.

Geography
The Armançon river has a length of  and a drainage basin with an area of .

Its average yearly discharge (volume of water which passes through a section of the river per unit of time) is 28.90 cubic metres per second at Brienon-sur-Armançon in the Yonne department.

Course
The source of the Armançon is in the natural region of Auxois, about  to the northwest of the town Meilly-sur-Rouvres, Côte-d'Or department, at an altitude of about .

The Armançon flows, in general, to the northwest and passes through the following regions, departments and communes:

 Bourgogne-Franche-Comté region
 Côte-d'Or: Meilly-sur-Rouvres, Chailly-sur-Armançon, Bellenot-sous-Pouilly, Éguilly, Gissey-le-Vieil, Beurizot, Saint-Thibault, Normier, Clamerey, Marcigny-sous-Thil, Brianny, Montigny-sur-Armançon, Flée, Pont-et-Massène, Semur-en-Auxois, Millery, Genay, Villaines-les-Prévôtes, Viserny, Athie, Senailly, Saint-Germain-lès-Senailly, Quincy-le-Vicomte, Quincerot, Saint-Rémy, Buffon, Rougemont, 
 Yonne: Aisy-sur-Armançon, Perrigny-sur-Armançon, Cry, Nuits, Ravières, Fulvy, Chassignelles, Ancy-le-Franc, Argenteuil-sur-Armançon, Pacy-sur-Armançon, Vireaux, Lézinnes, Ancy-le-Libre, Argentenay, Tanlay, Saint-Martin-sur-Armançon, Tonnerre, Junay, Vézinnes, Dannemoine, Cheney, Tronchoy, Roffey, Bernouil, Flogny-la-Chapelle, Villiers-Vineux, Percey, Jaulges, Butteaux, Germigny, Chéu, Saint-Florentin, Vergigny, Mont-Saint-Sulpice, Brienon-sur-Armançon, Ormoy, Esnon, Cheny, Migennes, Charmoy
 Grand Est region
 Aube: Marolles-sous-Lignières

Finally, it flows, as a right tributary into the Yonne river at the limits of the communes  Migennes and Cheny, in the Yonne department, at  of altitude.

Main tributaries
The main tributaries, with a length greater than 30 km, of the Armançon are (only right tributaries because the left tributaries are very short):
 Brenne - 71.7 km;
 Armance - 47.7 km;

Gallery

Related pages
 List of rivers of France

 References 

Other websites

 Banque Hydro - Station H2482010 - L'Armançon à Brienon-sur-Armançon (Synthèse)  

Category:Rivers of Bourgogne-Franche-Comté
Category:Rivers of Grand Est