Park in the hamlet of Fournel in the commune of Engins, in the car park on the right after the turning point (S/E). Start opposite on the steep tarmac road before joining the wide path.
(1) Take it to the right heading north; this path leads to the plateau's mountain pasture. Stay on this trail marked with the colours of the Vercors, i.e. JV (Yellow Green), before reaching the mountain pasture hamlet of Sornin.
(2) Then head north-northeast and, before the edge of the woods, northwest. Go around the woods and, at its western end, you will see the Cabane du Berger. Continue to the hut.
(3) Change direction and head south-west through the deciduous wood. You will come out onto an alpine pasture. Continue south until you reach a rocky ridge.
(4) Go around this barrier on the left and arrive at the Sornin chalets.
(2) Then retrace your steps to return easily to the Fournel car park (S/E).
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