Floyd Landis won his third career yellow jersey on Tuesday.
The rider that was worn yellow after the famed L'Alpe d'Huez has gone on to win the Tour de France on 20 of the 25 occasions the mountain finish has been featured in the Tour route.
There are 21 hairpin turns on the climb up to L'Alpe d'Huez. Stage 15, which began in Gap, was 116 miles.
The Tour doesn't get any easier after the first stage in the Alps. Stage 16 travels from Le Bourg-d'Oisans to La Toussuire, a four-climb monster stage that features a cruel, 15,000 vertical feet of climbing Wednesday. The La Toussuire ski area is making its first Tour appearance.