Col de l'Iseran is a mountain pass in France, the highest paved pass in the Alps. A part of the Graian Alps, it is situated in the department of Savoie, near the border with Italy, and is crossed by the D902 roadway.The pass is part of the Route des Grandes Alpes. It connects the valley of the Isère and the valley of the Arc River between Val-d'Isère in the north and Bonneval-sur-Arc in the south. The north side of the pass road is well built with a number of galleries and tunnels, with a maximum grade of 12 percent.On the northern side are the popular ski resorts of Tignes and Val-d'Isère.The pass is only accessible by road during the summer months. In the winter it falls within the Espace Killy ski area and is easily accessed by a series of pistes and ski lifts.The Col is also accessible by off-road mountain paths and is the highest point both of the Alpine GR5, a long-distance trail from Lake Geneva to Nice, and of the similar Grande Traversée des Alpes. The steep descent to the south, notable for its waterfalls, enters the Vanoise National Park here.