Madine Lake was created to serve as a water reservoir for the city of Metz. It extends on the course of the Madine, a sub-tributary of the Moselle river, in the plain of Woëvre. With its 250 bird species and 40 mammals species, the lake is classified as a National Hunting and Wild Fauna Reserve, included in the Lorraine Regional Nature Park. Along with the other ponds and wetlands in the region, Madine Lake is under the supervision of the Coastal Protection Agency. Its missions include, among other things, the preservation and restoration of reed beds, whose biodiversity feeds the birds.