Grand Rosier - Tete du Mont (Pontboset)

Grand Rosier - Tete du Mont (Pontboset) is an official trail from the Aosta Valley trail registry (code 18_S5). The route lies in the municipality of Châtillon, in the Valtournenche. From Grand Rosier (1479 m) to Tete du Mont (1907 m): 1.8 km with +425 m of elevation change, difficulty EE (CAI scale). Minimum elevation 1479 m, maximum 1907 m. Recommended season per registry: giugno, luglio, agosto, settembre (months 6, 7, 8, 9). GPX track and elevation data from Regione Autonoma Valle d'Aosta (open data DGR 899/2014).

Along the way — you move in the valley of Mont Avic and Mont Glacier, rich in lakes. The route crosses alpine pastures and larch woods, with flowering meadows in summer and broad views of the peaks opposite. It is for experienced hikers: steep or exposed sections, a sure foot is essential.