The mountain is located in the French departement of Savoie (Auvergne-Rhône-Alpes), near the Italian border. It visually dominates the west side of the Mont Cenis lake and belongs to the main chain of the Alps, standing on the water divide between the watersheds of the Dora Riparia (Po Valley) and of the Arc (Rhone Valley). It lies between the pass of Mont Cenis and the Col du Petit Mont-Cenis (2,183 m).