Champagne-Ardenne is one of the 27 regions of France. It is located in the northeast of the country, bordering Belgium, and consists of four departments: Aube, Ardennes, Haute-Marne, and Marne. The region is famous for its sparkling white wine (champagne). Its rivers, most of which flow west, include the Seine, the Marne, and the Aisne. The Meuse flows north.