To reach the start, coming from Nyons or Montélimar, head towards Bourdeaux on the D538 and turn left onto Chemin des Vitroullières, towards “Les Vitrouillères”. Ignore Chemin de Chamonix on the right, then turn left immediately afterwards and you will soon reach the Vitrouillères car park on Chemin des Plattes.
(S/E) Join Chemin des Vitrouillères, turn left and head for the entrance to the Hutopia campsite.
(1) Continue along the road, go through the barrier and follow the track towards the valley or Ravin de Saleras.
(2) Ignore the track branching off to the right and follow the valley floor. Climb gradually along this narrow track until you reach a right-hand bend opposite a rock (La Mare).
(3) Immediately after, leave the track and turn onto a path on the left which goes round the rock on the right and heads into the woodland. After a fairly steep climb, you’ll reach the ridge at the pylons.
(4) Continue along the track that follows the ridge to the next junction (Les 3 Pins).
(5) Turn left onto the path that leads into the woods and reach the Chapel of Saint-Maurice.
(6) Continue climbing, following the summit section along a less marked path through the woodland. Pass the summit (point 939) then descend to a path on the right.
(7) Continue straight ahead on the ridge path. After a few metres, ignore a path branching off to the left and continue straight ahead until you quickly reach a viewpoint on a rock to the left of the path.
(8) Turn back and return to the start of the path on the left (ignore the first one on the right).
(7) Take the path on the left which descends to the forest track and follow this to the left. On leaving the woods, continue for a few more metres until you find the start of a path on the right.
(9) Follow this path as it enters the woods and reach a hairpin bend in the track.
(10) Take the path that descends to the right and joins a small meadow on the edge of the ridge, above the valley. Continue along the path as it turns left. Pass two further hairpin bends and rejoin the track at a bend where there is a path opposite.
(11) Continue along this track to the right and rejoin the path taken at the bottom of the valley.
(2) Turn left onto the track. Return to the start of the walk via the same route (S/E).

