The Mont Blanc Tunnel is a road tunnel in The Alps under the Mont Blanc mountain, linking Chamonix, Haute-Savoie, France (45°54′05″N 006°51′39″E / 45.90139°N 6.86083°E), and Courmayeur, Aosta Valley, Italy (45°49′04″N 006°57′07″E / 45.81778°N 6.95194°E). It is one of the major trans-Alpine transport routes, particularly for Italy, which relies on the tunnel for transporting as much as one-third of its freight to northern Europe. It reduces the route from France to Turin by 50 kilometres (31 mi) and to Milan by 100 kilometres (62 mi).