The GR® 7 ridge route is 475 km long! It crosses five Regional Nature Reserves and one National Park, offering hikers and trail runners a wide range of scenery and cultural heritage.

This long-distance trail takes you on a journey from the Vosges to the Pyrenees. It roughly follows the watershed: on one side are the waterways that converge towards the Mediterranean; on the other, those that flow into the English Channel and Atlantic. The route crosses highly characteristic sites. Starting at the Ballons d’Alsace passes, it traverses the Regional Nature Reserve of the Ballons des Vosges. It then briefly veers into the Haute-Marne department before crisscrossing Burgundy, leading from Dijon to the uplands of the Auvergne-Rhône-Alpes and Occitanie regions. Passing through three Regional Nature Reserves (Pilat, Monts d’Ardèche, Haut-Languedoc) and the Cévennes National Park, it ends in Andorra via the Pyrénées Catalanes Regional Nature Reserve and Cathar country.