Marquis Mill

Departure from St Julien en Vercors towards Porte du Diable, take the road behind the church then left to the Ponson crossroads, from there, join Les Barons, Le Devet.. The route continues through the woods before emerging on a rocky ledge; cross it in a few bends to reach Moulin Marquis on the left. From there, return towards the Grotte des Gaulois and following a few bends at the foot of the rocky ledge, reach Porte du diable. Then progress in the scree by going around the part from below to reach the plateau of St Julien. Here, obligatory detour to the belvedere: views on the Bournillon cirque, very impressive (caution if the ground is "greasy"); the return to St Julien en Vercors is done for a good part in the undergrowth before reaching Ponson