You can reach the hamlet of La Pépinière either by coming from the Col du Fût d’Avenas via the D18 or from the Vauxrenard side via the D86. Park in the car park above the Pépinière house.
(S/E) From there, take the path at the end of the car park which climbs into the forest. Follow the path for about 200 m, then turn right onto the path. At the end of the area reserved for storing trees (loading bay), take the path on the left, then left again a few hundred metres further on, and left once more a little further on.
(1) When you reach this junction, head straight up for 100 m to reach the stonemason’s workshop situated below the path and visit the site of the former quarryman’s home. Then climb up through the woodland opposite the workshop for about 100 metres. In front of you lie the old Triassic sandstone quarries. Take the path on the left as you leave the quarries, then follow the track that climbs to the left and winds through a beautiful coniferous forest.
(2) At the junction, turn 90° left towards the west and follow the forest path which veers south.
(3) At this point, turn sharply right and continue along the main path, which curves sharply to the right. About fifty metres before the junction (elevation 799), you can stop at the Pierre de Saint Martin, situated in a clearing on the left-hand side of the path.
(4) Then take the path on the right, which leads straight back to your starting point (S/E).