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Follow the signs for Parc de l'Odyssée Verte, about 1 km from the village, and park in the car park
(S/E). Take the "Sentier des Fleurs" (Flower Trail) to the right of the track towards the park. Once you have passed it, take the main track to the start of the Téléski des Alleyrons ski lift.
(1) Climb up to the right until you reach the Téléski du Blavet, where you will find yellow and green markings.
(2) The climb starts completely on the left, in the fir trees, and becomes steeper as you stay on the Crête des Alleyrons.
The view opens up onto the Vercors barrier before you reach the top, where you will find the arrival point of the ski lift (altitude 1678).
(3) Head left, descending into a small pass at around 1600 m.
(4) Leave the marked trail to climb left up the Crête du Brisou and arrive at Grand Brisou (elevation 1674).
(5) Turn around and descend to the small pass.
(4) Continue descending, turning sharply left. The trail quickly enters the forest, and the descent, with its many switchbacks, is quite gentle compared to the steep profile of the mountain. Reach a fork in the Ravin des Peatlands.
(6) Continue straight ahead on the path, which remains on the ridge, to the Col de l'Allimas (altitude 1,354 metres), passing Ravin de la Rantanche further on.
(7) At the pass, turn left and stay on the edge of the road for about a hundred metres, then turn left into the forest to return to the Parc de l'Odyssée Verte car park (S/E).
Visorando member
Difficult 
Very difficult 
