1
From Col du Rousset (alt. 1254m) , descend the road and take the track on the left in the forest to Col de St-Alexis (alt. 1222m).
2
Continue straight ahead. Pass the Biathlon stadium. Further on, through a clearing, reach the Pas du Pré (alt. 1186m).
3
Turn left. Descend on a wide, steep, sometimes technical path. Reach Les Greppes (alt. 1112m).
4
Go down a stony path to the left. Continue straight ahead across the plateau to the Château (alt. 1053m).
5
Take the grassy path to the left. Turn left at Les Chèvres (alt. 1065m) and continue to La Nécropole (alt. 1065m).
6
Cross the road and take a path, then a trail to reach Vassieux-en-Vercors (alt. 1050m).
7
Follow the marker no. 14 in the village and take a left onto a path in the middle of the fields to Cerisiers (alt. 1115m).
8
Continue straight ahead, then at the road junction take a path heading due south which leads into the undergrowth. Reach a track, follow it to the left then turn right to reach the Fontaine du Lauset (alt. 1243m).
9
Take the path on the left that climbs into the woods. Join a road and follow it to the right until you reach the Fontaine du Plainet (alt. 1335m).
10
Leave the road. Pass in front of the forest hut and follow the very steep climb to the Col de la Chau (alt. 1431m).
11
Take the ridge path. Viewpoints. Reach the Col de Vassieux (alt. 1333m).
12
Turn left and follow the markings through woods and grass to the Col de Chironne (alt. 1416m).
13
Continue straight ahead and go back down the Roman Road. Viewpoint! Go under the tunnel to reach the finish line.
