Alpe d'Huez

Where it is

Alpe d'Huez sits above the village of Le Bourg-d'Oisans in the Isère department of the French Alps, an hour southeast of Grenoble. The climb starts at the river crossing on the D211 and finishes inside the ski resort at roughly 1815 m. Each of the 21 numbered hairpins is named after a Tour stage winner, which makes the bends part of the lore.

What makes it iconic

The opening ramp from Le Bourg-d'Oisans to the first hairpin is the hardest section — sustained 10 to 12 percent that breaks groups before the climb even settles. The middle eases to roughly 7–8 percent for a long sequence of switchbacks. The final two kilometres ramp again as the road threads through the village.

The 13.2 km, 1071 m of vertical at 8.1 percent average grade is a textbook hour-long climb. Top pros set 39 to 41-minute times; well-trained amateurs come in around 55 to 70 minutes; recreational riders in 90 minutes to two hours.

Race history

L'Alpe debuted in the Tour de France in 1952 with a win by Fausto Coppi and has appeared more than 30 times since. Marco Pantani holds the unofficial fastest ascent at 37 minutes 35 seconds set during the 1997 Tour (since debated due to the era). Modern Tour ascents stage the iconic Dutch Corner at hairpin seven, where Oranje fans turn switchback 21 into a single-day rave.

Pacing

If you are doing it once, save something for the opening kilometre. The first three hairpins are the hardest of the climb and burn matches you will want back later. Settle at threshold or just below, drink early because there is no shade, and use the brief flatter sections after hairpins 16 and 12 to recover.

Practical notes

The road surface is well maintained because of the ski resort traffic. The climb is rideable from May to October. Avoid the high-summer middle of the day — it gets very hot in the bottom switchbacks and crowded with motor traffic. The descent is fast and technical; take care on the first three hairpins coming back down.