A mini but mighty mountain stage from Embrun to Isola 2000 comes on stage 19. It may be only 145km but the climbs of the Col de Vars (18.8km at 5.7%), the Cime de la Bonette (22.9km at 6.9%), and the finisher at Isola 2000 (16.1km at 7.1%) should host a major GC battle.