An in-between, on the "Côtière du Revermont" side and on the "Vallée du Suran" side.
Three passes (Justices, Angoulures and Rousse), a passage through the royal forest of La Rousse and 2 crossings of the Suran, not forgetting the château de Rosy nestling in its valley.
Other departures :
- village of Treffort (an extension of the route via the Chemin des Barres approx. 2 km )
- village of Chavannes sur Suran
- Col des Angoulures