Les Septvallons

Les Septvallons is a commune in the Aisne department of northern France. The municipality was established on 1 January 2016 and consists of the former communes of Glennes, Longueval-Barbonval, Merval, Perles, Révillon, Vauxcéré and Villers-en-Prayères.
The town hall is in Longueval-Barbonval.
Geography.
Les Septvallons is in the eastern part of the Soissons "arrondissement", in the valley of the Aisne river; the "commune" is on the border with the Marne department, at to the south of Laon, the prefecture of the department, and at to the east of Soissons, the subprefecture of the "arrondissement".
It has an area of with an altitude of .
Composition.
The "commune" is formed by: