This iconic hike in Haute-Maurienne in Savoie starts at Lac du Mont-Cenis, more precisely at the dam where a large car park makes access easy. Situated along the strategic National Route 6 (RN6) corridor, this border location connects France and Italy amidst a spectacular alpine landscape.

The route begins at an altitude of 1,978 meters and leads to the summit of Le Vieux Fort, perched at 2,917 meters. With an elevation gain of 939 meters, this ascent offers an authentic mountain experience, rewarded by an exceptional panorama of the surrounding peaks and the valley. Ideal for hikers wishing to explore the nearby Vanoise National Park, this trail combines a physical challenge with the discovery of Alpine military heritage.