Description of the route

After reaching Barmaz, in the municipality of Valtounenche, leave the car in the car park and continue along the dirt road until you reach Château (a small cross has been erected here, in memory of the Abbé Aimé Gorret. Tradition has it that Abbé Gorret and Edward Whymper, famous early mountain climbers, used to stop here to rest). Then take trail no. 26 which rises slightly and leads out onto a beautiful green basin (2300m).
After the basin, the trail gets steeper, goes over a rocky leap and enters a small channel next to the stream, finally leading onto a large grassy basin called Pâturage de l’Aran (2660m).
Continue along the trail until you reach a crossroad. Leave trail no. 26 on the left for Becca d’Aran and continue along the right branch of trail 29 which enters the glacial valley between Mount Roisetta (to the north) and Grand Tournalin (to the south).
At this point, turn left to reach a saddle and then, continuing along the trail you come to the peak of Mount Roisetta, from where you have a wonderful view of the Mount Rosa range.