Park at the Col de Tourrrugue.
(S/E) At Col de Tourrugue, take the track that climbs opposite (south) of the pastoral refuge, then the wide path on the left that runs alongside it.
(1) Cross the track once, then head south to cross it twice more and reach a crossroads.
(2) Climb up the track on the right towards the Col de Seillis, passing in front of the Refuge d'Ourtiset.
(3) 100m before the fence that crosses the pass, climb up to the right along the winding path that leads up to the ridge, then climb up to the left to reach the Pic de l'Ourtiset.
(4) From the summit, continue down through the mountain pines, cross the fence and continue down the small path that leads to an area where a few pines grow, then crosses over to the other side of the meadow and reaches a flat area.
(5) Enter the forest on the right, follow the path, then climb up through the forest before descending along the path on the left. Turn right at the next junction.
(6) In the clearing, turn right and descend through another forest. At the bottom, climb up the Route des Sapins on the right to reach the Col de Tourrugue (S/E).