Here is a 50-100 word summary of Site nordique de Mouthe: Located in the heart of the Haut-Doubs region, Site nordique de Mouthe offers a range of winter activities, including cross-country skiing, alpine skiing, and snowshoeing. The resort features over 500 km of marked trails, suitable for all levels, with the Nordic France label. The area is surrounded by Scandinavian landscapes, with villages, high-altitude forests, and frozen lakes. Visitors can also enjoy the ski resort of Mouthe Liadet, which offers a variety of slopes, including the legendary "Fabrice Guy" slope, and a leisure center with amenities and services.