Châtillon-sur-Marne is a commune in the Marne department in north-eastern France.
It lies in the valley of the Marne, surrounded by the Parc Naturel de la Montagne de Reims. It lies in the historic province of Champagne. The village stands above sloping vineyards and fields: Épernay, the principal entrepôt of the Champagne wines, is within walking distance.
Wikipedia https://en.wikipedia.org/wiki/Châtillon-sur-Marne
Coordinates 49°5'56.379" N 3°45'30.07" E
