Description of the route

Park your car in Vieyes, continue on foot on a dirt road as far as the pastures of Plan Pessey. Ignore the right branch of route 4, and continue on route 5 going up the slope and running alongside the Grand Nomenon stream until you come to Alpe Petit Nomenon. Here, ignore route 27 B on the left which goes to La Nouva, and continue up on the same route until you reach Alpe Grand Nomenon and Gontier bivouac.