Arriving at the Col du Barbier, a small detour of a hundred metres to the south will offer you a view overlooking the valley of Maurienne, crossed by the River Arc. In front of you, the horizon will be blocked by the border mountains range with the magnificent Aiguille de Scolette (3,506 m). To the south, you will see the three characteristic teeth of the Aiguilles d’Arves. At the bottom of the valley, the strange balls of ONERA (National Office for Aerospace Studies and Research), the largest European wind tunnel, testify to the industrial activity of Maurienne.