Created in 1993, the natural reserve of Chalmessin constitutes a natural treasure in the medium of wood. Its 24 hectares, managed by the Academy of inheritance the natural Champagne-Ardenne, shelter one of the tuff marshes most remarkable of the plate of Langres. Since the last glaciation, 8 000 years ago, of the very particular conditions allowed this narrow small valley to preserve a typically mountain fauna and a flora.
Path of discovered in free access all the year or guided tour on demand for season.