Description of the route

From Epinel, a hamlet on the road to Cogne, cross the Grand Eyvia stream and take route 27 which goes up to Alpe Pianesse. Just before the houses, near a crossroad take route 27B on the right, which crosses the hillside of Bois de Ronc and leads to Alpe Petit Nomenon, in the municipality of Aymavilles. Now, take route 5 on the right to go up to the pasture of Grand Nomenon and the Gontier bivouac.
Before coming to Alpe Petit Nomenon you will find a section of the trail equipped with ropes and chains.