From the RN85 road between Gap and Grenoble, take the D17 through the village of Poligny, then the D817 west towards Le Noyer. Pass the hamlet of Les Forestons to reach the Chapelle Saint-Étienne (3 km). Park in the chapel car park (Route de Saint-Esteve).
(S/E) Take the forest track south, following the yellow markings towards Col de Chétive.
(1) Stay on the left track, heading south-west-west, until you pass a house in the woods.
(2) Continue slightly to the right and keep following the yellow markings.
(3) Turn left at the junction towards Rageoux - Cabane des Pierres and continue for 80 metres.
(4) Turn right onto the path that climbs uphill and continue ascending until you reach the junction with the GR®93.
(5) Turn left towards Cabane des Pierres - Col de Chétive and follow the GR® for at least 1 km. Cross the Torrent du Rageoux stream over the rocks, then leave the woods to reach Les Pierres.
(6) Turn right towards Col de Chétive, climbing up the scree slopes, still following the GR®. The climb becomes steep and rocky. Continue until you come to another path on the hillside, next to a large rock.
(7) Turn right to continue climbing towards Col de Chétive. Be careful on the tricky section at an altitude of around 1,730 metres, near a small waterfall. Reach the pass by finishing the climb on a windy ridge.
(Note that from the pass, you can climb left to the Sommet du Chamois and back, or descend towards Chaudun.)
(8) At the pass, turn back and follow the same route you took on the way up.
(7) Turn left at the large rock, still following the route you took on the way up.
(6) Continue to the right towards the Cabane des Pierres.
(9) Descend the track to the left, heading north-west, to reach Cabane des Pierres in its meadow.
(10) Pass to the left of the hut and continue along the path, which veers slightly to the left and descends, heading due north. The path joins others on the right; continue heading due north until you reach a sharp left turn.
(11) Take the path that descends into the forest, still heading north, and continues almost in a straight line. You will come back to the intersection you passed at the start of the hike (house in the woods).
(2) Retrace your steps along the route you took on the way up to return to the car park (S/E).