To reach the starting point, head to the bottom of the valley to the hamlet of Villard de l'Enclus; immediately after the bridge, turn right onto the Route Forestière du Bois Rond for around 2.5 km to reach a car park (signposted) located near the Cabane de l'Avalanche. Beyond this point, traffic is prohibited.
(S/E) Join theGRP® Tour du Dévoluy (red and yellow markings), which climbs gently along an east-southeast-facing track towards the Col de Rabou.
(1) At the 1619m mark, below the Vallon Froid, leave theGRP® and turn right onto a forest track marked in yellow.
(2) Just after leaving the woods, take the left-hand fork (the path seems to want to go straight on!). A few hairpin bends, amidst the blueberries, above the Bois Rond, will lead you to the shepherd’s hut and the entrance to the Vallon d’Âne (a good spot for a break or a picnic).
(3) Head down towards the sheep troughs near the hut; they are clearly visible. Then take a path marked in yellow on the right.
(4) Just before the sheepfold, stay on the right-hand branch to enter the north-facing valley. The path is well marked and visible; a few hairpin bends in the lower section lead you to the Cabane de l'Avalanche. Then head to the car park (S/E).