Start at the Croix des Barons (according to the name on the IGN map), a sign on site calls it Croix de Mathivière. There is enough space at the cross to park several cars.
(S/E) Take the path that climbs straight up towards the forest, leaving the small road that descends towards Mathivière on your right.
Shortly after the edge of the forest, the path turns left. You will be walking on beautiful outcrops of metamorphic rock. Ignore the path that branches off to the left and continue climbing this beautiful path through the woods. After a short flat section, you will come to a junction.
(1) Take the main path on the left. Ignore the path just after that which climbs to the right and continue along this pleasant path through the forest.
After leaving the forest, continue straight ahead on this path, which becomes wider and then paved.
(2) When you reach the hamlet of Bayard, take the road that climbs to the right, then immediately left. You are now on a very pleasant path at the edge of the forest. After a meadow, the path descends steeply through the woods. Ignore the first two paths that branch off to your left and continue to the next crossroads by the stream.
(3) Take the path on your left. It will cross the Goutte de Bellevue stream, then climb up towards the farm of the same name. Pass the farm on the path, which turns into a paved road.
(4) At the crossroads, take the D628 road down to the right.
(5) At the Biternay farm, take the marked path on the right. Follow this path, which starts in the middle of the meadows and then enters the forest. Ignore the paths that branch off to the right and descend to the road.
(6) Follow the road downhill to the right for one kilometre.
(7) Shortly after crossing the Goutte de Bellevue stream, take the road that climbs to the right, lined with orchards (in season you will see cherry, mirabelle plum and apple trees, etc.) which leads to the Trèves farm.
(8) Walk past the farm and take the path opposite the road (do not take the more obvious path that climbs up to your right).
The path winds pleasantly through the woods, lined with pretty dry stone walls. When the path runs alongside orchards, ignore the paths that descend to the left.
(9) At the signposted crossroads, ignore the path that descends towards La Mathivière and continue straight ahead. When the path joins the road, turn right.
After 50 metres, you will return to your starting point at the Croix des Barons (S/E).

