This loop is a real adventure off the beaten track, right in the heart of the mountains, in a unique and wild environment.
The route is 70% road and 30% gravel. Its passage through the lacets of Montvernier will not leave you indifferent. The remainder of the route through the forest offers a very unspoilt and calm setting, before finishing the ascent by road to the pass. The pass offers panoramic views of the Belledonne and Lauzière massifs.