Walk to Fort Lachaux- Grand-Charmont, Sochaux, Montbéliard: Discovery of the remains of the fort (double caponnière); visit to the animation farm (farmyard, sheep, goats; passage in front of the remains of the accommodations of Peugeot factory workers (1953, 1970); 2 lookouts: side EST towards the valley of the Savoureuse le Ballon d'Alsace, on the OUST side towards Montbéliard its castle its stadium Auguste Bonal.
Montbéliard