Parking is available at the Col des Quatre Chemins in a large bend on the D33 (elevation 643).
(S/E) Take the beautiful track that starts due west in the bend, just below the Saint-Laurent road. You will quickly find theGR® markings and yellow and orange signs.
The track runs through open areas overlooking the ochre veins of Gignac and Rustrel and runs alongside the "dalle à empreintes" (1), which bears the traces of animals that lived there some 30 million years ago. Continue until you reach a small road (2), which you should follow, still heading west.
(3) At the crossroads, continue straight ahead for 200 metres to reach the place called "Ubac de Pradenques".
(4). Take the signposted and marked track that starts on the left.
(5) At the next crossroads, turn right to reach the hamlet of Saint-Amas.
(6) At the first houses in the hamlet, turn left onto a well-marked path that climbs through meadows and then into the woods. Keep an eye out for the yellow markings.
(7) Pass the Saint-Laurent Chapel and head towards the hamlet of Saint-Laurent. Cross the small road.
(8) Go around the houses on the left and continue on the beautiful track heading east. Along this track, you can admire some pretty drystone shelters.
(9) Reach the village of Viens.
Take the time to visit the very pretty village of Viens. Then head down towards the Saint-Hilaire Church.
(10) Take the track (GR®, red and white markings) that starts on the left, just below the cemetery. After a few dozen metres, theGR® dives to the right to join a small road. Take this road on the left, going downhill (the path is moderately pleasant). Stay on this road and ignore theGR® variants until you reach the D155.
(11) A little further on, you will reach the Chapelle Saint-Ferréol on your left.
Pass the chapel and, about a hundred metres further on, take the track that starts on the left (signposts for Rustrel). This track climbs through woods and broom and overlooks veins of blue-turquoise earth.
Continue to follow the yellow markings (ignoring theGR® which branches off to the left), even when they leave the track to take a small parallel path (due to the track being private).
(12) Cross the D33 and take the track that starts again almost opposite, heading south towards the Col des Quatre Chemins (sign and yellow markings), where you will return to the starting point (S/E)
