From the village of Eaux Rousses, a hamlet near the municipal seat of Valsavarenche, cross the bridge over the stream and take the path that goes up over the meadows. You then come to sparse woods until you reach the long plateau, where you find the pasture of Levionaz Inferiore, next to the lodge of the National Park Gran Paradiso and a votive chapel. After going across the entire plateau and crossing the stream, the path climbs steeply, first across meadow and then over stone ground, and finally leads to Col Loson.

Difficulty : EE