Step 1
This first stage is probably the most alpine of the Tour. From Saint Etienne, you will head towards the Enclus and the IRAM cable car. A beautiful climb in the alpine pastures will take you to the foot of one of the giants of Dévoluy: Le Pic de Bure. You will go up the Combe Ratin, by the GR. A striking change of atmosphere; you and the stone walls will become one. You will arrive on the plateau directly at the IRAM observatory where its 12 impressive antennas that listen to the stars will leave you contemplative. You will then cross the plateau of Bure, may or may not make the return trip to the Pic de Bure and dive towards the Maison Forestière des Sauvas
Count for this stage 7 to 8 hours of walking.