Park in the last car park on the D472 after the hamlets of Les Borels and Les Gondouins.
(S/E) Opposite, take the track that leads to the Refuge de la Chaumette.
(1) Before the bridge, turn left onto theGRP® du Tour du Vieux Chaillol. Follow the right bank of the stream below, known as the Drac de Champoléon or Drac Blanc, to easily reach the Refuge de la Chaumette.
(2) Join theGR®54(Tour de l'Oisans) which descends to the right of the Cols de la Cavale and Aup Martin. Take thisGR® on the left, first heading north, then south at the Vallon de la Pierre.
(3) After a series of hairpin bends, the route turns west to reach the Col de la Vallette.
(4). Begin a short descent followed by an equally short climb to reach the Col de Gouiran.
(5) Continue north with another descent before starting another climb at a trail junction.
(6) Turn right to easily reach the third pass, Vallonpierre.
(7) Return to the previous crossroads.
(6) Turn right onto the well-markedPR® (yellow) trail. A series of hairpin bends will take you to the small Lauzons lake.
(8). Continue south-east, passing another series of hairpin bends.
(9) Return to the first crossroads.
(1) Turn right onto the path you took on the way out to return to the car park (S/E).
