Description of the route

In the square in Valpelline take the road that runs along the cemetery and goes under the hydroelectric power station, and reaches the bridge over the Buthier. Cross the stream and take itinerary 5 as far as Ronchéaz. After the residential area, go up towards Alpe Planes. Take the dirt road that you meet just before Alpe Planes. Leave this dirt road when you come to a sharp bend just after the houses. Cross the stream and go up to Alpe Verney, Alpe Arpisson and Porillon-Alpe Neuve, occasionally crossing over the dirt road. From here, continue along the road until you come to Fouillou mountain pasture. Keep on to the right along itinerary 105, on the plateau near a waterfall (sometimes dry). The path goes upwards leading onto Lac d’Arpisson and then turn right to the mountain pass and the bivouac Penne Nere.
At this point, veer right to reach the summit.