Anello delle gole del torrente Roesaz

A wild and spectacular loop starting and finishing at Isollaz (700 m) in the municipality of Challand-Saint-Victor. The route plunges into the gorges carved by the Roesaz torrent — one of the most dramatic and least-visited natural environments in the lower Aosta Valley. Narrow metamorphic rock walls close in to form genuine canyons where light barely penetrates, the ground is wet and uneven, and the sound of rushing water is constant. Above the gorges the trail gains height rapidly through forested and then open slopes before descending on the opposite flank. At 9.4 km and 1238 m of ascent, the EE rating reflects exposed passages, boulder stream crossings and faint sections requiring confident navigation. Suitable from June to October in stable conditions.