Description of the route
Cross the bridge opposite the tobacconist in Thuile, then take trail no. 13 on the left, which leads to the climbing wall and reaches the inter-estate road which goes from the village of La Balme, through Arp and Peson and leads to the Youlaz pastures. When you come to Mayen de la Youlaz, continue along trail no.13, in the Youlaz valley, on the orographic left bank of the stream. After reaching the Maggiore Reggiani former Shelter, continue going up until you get to Col d’Arp (2570 m).