(S) Start from the Vallonpierre Refuge, walking along the left bank of the lake. Ignore the path branching off to the right towards the Chambournéou Refuge.
Cross a maze of large boulders and begin the descent via numerous hairpin bends. Follow the red and white markings ofthe GR®54, which is also the route forthe GRP® du Vieux Chaillol. Continue this descent to reach the bottom of the valley on the left bank of the Torrent de la Séveraisse and arrive at a crossroads of paths.
(1) Ignore the path branching off to the right towards the torrent and stay on the GR®. Pass the Cabane de Surette and continue downhill along the left bank of the Séveraisse. You will reach a footbridge.
(2) Cross the stream via the footbridge. Follow the right bank to reach the Clot junction, just below the D480t.
(3) Continue along theGR® between the road and the Séveraisse, pass the Refuge du Clot Xavier Blanc and then reach the hamlet of Le Rif du Sap.
(4) Carry on, staying on theGR®, until you reach the Camping des Bouleaux.
(5) Cross the river again, enter the hamlet of Le Bourg and, further on, reach another footbridge.
(6) Leave theGR® here, take the footbridge on the right and enter the hamlet of Le Casset. Then turn left onto the D480 and follow it to the car park at La Chapelle-en-Valgaudemar (E), today’s stage and the final point of this Écrins-Oisans tour.