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Access: On the D103, at the southern exit of Saint-Julien-en-Vercors, turn right onto the D612 towards "Le Briac". Follow the D612 and pass successively through La Matrassière, then Les Domarières and arrive at Le Briac.
Park on the right in a small car park at the side of the road, just after the junction with the road leading to the "Château".
(S/E) From the Briac car park, to avoid having to manoeuvre your car, follow the D612 road south for 1.1 km. You will reach a small pass, Sandron.
(1) Take the track on the right (west) between two hedges of trees and boxwood. This track climbs gently at first, then more steeply into the forest among the boxwood trees.
After crossing several logging tracks, the track turns north-west and reaches a high point at the foot of the "des Pins" forest.
(2) Follow the track downhill, then level northwards to a crossroads, Les Scialères.
(3) Turn left, heading west, onto a fairly wide track that climbs gently, heading northwest and then north. You will reach a crossroads with four paths.
To the left, heading west, you will reach the Pas de l'Allier after about 20 metres.
From Pas de l'Allier, there is a panoramic view of southern Vercors and the "Grands Goulets". From Pas de l'Allier, a track descends to the hamlet of Méselier in the commune of Châtelus, but do not follow it.
(4) Return to the crossroads of the four paths and take the faint track on the left, which heads north between the box trees.
The narrow path climbs through the box trees towards the north-north-west, then turns north-east and reaches a very small clearing at an altitude of 1,214 metres on the IGN map, where three other poorly marked paths converge!
From there, take the path on the left that heads north-northwest and follow it for about 200 m. This leads to a very small clearing, where you must leave the path and follow a line of trees cluttered with small box trees, shrubs and dead branches, which climbs straight up towards the west-northwest.
After about 100 metres, you will reach the ridge of Petite Cornouze, bordered to the north by a rocky break.
Follow this ridge to the left towards the south-south-west for about thirty metres to reach the highest point of the walk, the Petite Cornouze viewpoint, where there is a marker at 1271m. From this viewpoint, you can enjoy a 360° panorama as there is no vegetation to obstruct the view!
(5) From there, taking care, follow the ridge for 500 metres towards the north-northeast, bordered by the rocky ridge.
An increasingly visible path marks the ridge that leads to the Petite Cornouze viewpoint. From this viewpoint, there is an impressive view to the north over the Rochers de Presles, Les Coulmes, La Goulandière and the bottom of the Gorges de la Bourne.
(6) Head east, following the logging track that descends quite steeply into the forest. The slope levels out and the track opens onto a large clearing where tree trunks are often stored.
Stay on the path that goes around the clearing on the left and continue to the Cabane à Lili crossroads, where another logging road ends on the right, closed by a barrier.
(7) Continue east-northeast on the logging road, which descends gently to the Bournillon viewpoint on the left side of the road.
(8) Take the logging road eastwards, which leads after 150 metres to a parking platform where you may find vehicles when the gravel forest road on the left is clear...
From this platform, turn right, heading south, onto the logging road, which is closed by a barrier and climbs steeply. After about 200 metres, take the path on the left, which runs parallel to the logging road on the eastern side of the forest.
The path climbs southwards and leads to a junction with the path coming from the right of the logging track, which is a high point.
(9) Follow the path, which descends quite steeply towards the south-east at first, then more gently towards the south-south-east, and arrives at Le Briac (S/E).
Local authority
Difficult 
Visorando member
Easy 
