Mont Cenis (Italian: Moncenisio) is a massif (el. 3,612 m / 11,850 ft at Pointe de Ronce) and a pass (el. 2,085 m / 6,840 ft) in Savoie (France), which forms the limit between the Cottian and Graian Alps. From Wikipedia
His dominant display in the Alps positions him as the rider to beat when the Tour de France begins in July.