Aubetin

The Aubetin is a 61.2 km long river in the Marne and Seine-et-Marne départements, northeastern France. Its source is at Les Essarts-le-Vicomte, 20 km northeast of Nogent-sur-Seine. It flows generally west-northwest. It is a left tributary of the Grand Morin into which it flows at Pommeuse, 5 km west of Coulommiers.

Communes along its course
This list is ordered from source to mouth:
 * Marne: Les Essarts-le-Vicomte, Bouchy-Saint-Genest,
 * Seine-et-Marne: Louan-Villegruis-Fontaine, Villiers-Saint-Georges, Augers-en-Brie, Cerneux, Courtacon, Beton-Bazoches, Frétoy, Dagny, Amillis, Beautheil, Saints, Mauperthuis, Saint-Augustin, Pommeuse,