GR 9
The GR 9 is a long-distance walking route of the Grande Randonnée network in France. The route connects Saint-Amour, Jura with Port Grimaud.
Along the way, the route passes through:
Saint-Amour, Jura
Lajoux
Culoz
Grenoble
Saillans, Drôme
Monieux
Trets
Rocbaron
Port Grimaud Wikipedia