Description of the route
From Valmartin, in Valtournenche, where the paved road ends, take Alta Via 1, which gains considerable altitude among the pastures and after crossing the woods, and after a diagonal slope, leads to several buildings of the hydroelectric power station (Promoron). From here you come to Alpe Falegnon and continue into the valley along the hillside, until you come to the foot of the artificial barrier. At this point, you go up to the right until you are above the barrier; cross it to reach the Barmasse refuge.