Nice loop round Plateau de Sornin, Dent du Loup, and la Moliere
Details
Modified version of route No. 7 from Guide Rando: Vercors. Parked in Engins instead of Le Fournel, and climbed the metalled path up to the plateau de Sornin. Reasonably steep climb up to the plateau, average ~ 10%. Guide Rando has you go up to the Dent du Loup and loop round the plateau and back. We extended this to climb up to La Moliere and then up to the viewpoint at Charande, returning via a steep path from La Moliere to rejoin to metalled path. Great views across Grenoble and the Chartreuse from the Dent du Loup. We could have detoured up to Gouffre Berger as well after the plateau, but i had forgotten about it!