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The hike starts in the hamlet of Chauplane between Saint-Michel-les-Portes and Gresse-en-Vercors. Park in the hairpin bend before the village.
(S/E) Continue along the tarmac road and cross the hamlet of Chauplane.
(1) At the last houses, on the left, take a path that climbs into the Maladraye forest. The path passes behind the last house on the left at the corner of the roof, level with the four wooden poles (it is important to take this path, otherwise it is very difficult). This path turns north-east.
(2) Leave the forest at around 1,400 metres and follow the ridges to Pas du Serpaton. Admire the magnificent panorama before you (don't forget your map to identify the peaks on either side, which I cannot name here as the view is so spectacular)
(3) At Pas du Serpaton, take the paved road for about 50 metres and then take the track on your left, which turns into a trail. Look for the Baconnet rock on your left
(4) 500 metres further on, on your right, you will see the Combe des Têtes.
(5) A few metres further on, look for the cross on your right (elevation 1524 on the map) located in the extension of Somme Longue.
(6) Descend through the fields, off the trail, and reach the bottom of the valley. On the ground, the trail is clearly visible, as it is on the OSM map. Return to the starting point (S/E) by following Somme Longue and the Chauplane stream.
Visorando member
Difficult 
Very difficult 
