Start from the small car park in front of La Baume-Cornillane town hall.
(S/E) With your back to the car park, take the small road (D208A) on the right until you reach the crossroads. Leave the D208 on your right and turn left onto the road (Chemin du Donjon), which continues along a path leading to the old medieval village ruins (signposted).
After about 250 m, cross a small road and continue for 250 m opposite on a track that passes under the old village, which can be easily reached by turning right and taking various small paths or the discovery trail.
(1) From the feudal ruins, you can also see the small rocky outcrop to the north, just above the village, called Centre de la Pangée (information panels near the feudal site). Orientation table.
Retrace your steps to rejoin the track leading to the feudal site. Continue along the track on the right until you reach the next track/road junction.
(2) Continue straight ahead, heading east. A few metres further on, leave the track that leads to the Graire farm on your right and take the path on the left leading to Pas de la Croix. Continue along this path, which gradually turns into a steep trail through the woods. Ignore the various paths, tracks and trails that cross it and follow the signposts to Pas de la Croix.
(3) Head south-southeast downhill to Pas du Buis.
(4) Continue north-east along the same path until you reach the forest road.
(5) Follow the forest road to the right for about 250 m until the next fork.
(6) Then turn right onto the road that leads to the pylon or summit of La Raye. Leave the start of the path leading to the orientation table and the ridges on your left at the last bend before the pylon. Turn right and follow a very narrow path to the left of the fence surrounding the pylon site for a few metres.
(7) This will take you to the summit of La Raye. Continue south, first along the small road and then right along the marked ridge trail leading to the orientation table. Then follow the ridges, sometimes along the edge of cliffs, which can be quite vertiginous. The ridge trail then enters the woods; stay on it, following the yellow and green markings. This will take you to the directional mast at the Col d'Ourches (at around 840 m).
(8) At this pass, turn right, heading north towards Ourches, and descend this forest track (steep descent) to the road leading to Ourches. Pass an old tin hut. This track is the main route: ignore the various paths that cross it.
(9) At the road, follow it to the right for about 350 m, leaving the various paths leading to the Grand Échevin farm on your right.
(10) At the three-way junction, turn north-northwest and take a path that crosses the Rolandon stream and passes through fields towards La Baume-Cornillane.
(11) Leave the road on the right that leads to the Champey farm, cross a small stream, continue straight ahead until you reach the La Baume-Cornillane road.
(12) Follow it to the left, leaving the various small roads on your right until you reach the junction with the D745.
(13) Take the road on the right and, at the next junction about 300 m further on, continue straight ahead to reach the next crossroads and the starting point (S/E) by turning right.