From Bourg-Saint-Maurice to the south-west, the Col du Petit Saint-Bernard is 26.5 km long. Over this distance, the climb is 1,348 m (4,423 ft) (an average slope of 5.1%), with the steepest sections at 8.1% at the start of the climb. The first 15.5 km (9.6 mi) to La Rosière forms the Montée d'Hauteville climb.