Coming from La Mure, park in the car park on the right, just after the church in Valbonnais.
(S/E) Cross the road and head up to the right towards Péchal for about a hundred metres.
(1) Turn left towards the Col de Plan Collet, following theGR® 50)
Pass through the villages of Bourchany and Les Sauvons. At each junction, follow the signs carefully: Small Pass of Plan Collet.
(2) When you reach the pass (after about 2.8 km), turn right and follow theGR® up a fairly steep climb.
(3) At the signpost for the small pass of Plan Collet, enjoy the views of the Piquet de Nantes and the Tabor, the Mathésine plain and the Senépy, with the Vercors range in the background. To the left is the Obiou, to the right the summit of the Grisonnière and the Coiro.
Leave theGR® and continue to the right, skirting the park, climbing up to the first junction on the right at an altitude of approximately 1,610m.
(4) Follow the path to the right – it is faint but clearly visible – towards the Cabane de Belle Roche (marked as ‘Côte Belle’ on the hut sign) on the IGN map.
(5) Continue along the path, keeping roughly to the same contour line, and if in doubt (look for duck tracks), turn left. Cross the Grande Dreyre stream.
(6) You’ll reach the sign for Cabane de la Drayre (with an ‘A’) at 1,660m (about 1.8km between Cabane de Côte Belle and the sign). Turn right and head down to the hut.
(7) At the Cabane de la Drayre (the hut is of little interest unless the weather is bad), follow the very beautiful path which takes us back to the hamlet of Péchal,
(8) Turn right and return to the junction from the outward journey.
(1) Continue straight on towards the car park (S/E).