Montée du Serpaton from Gresse-en-Vercors

The Montée rises 4.9km through wooded valleys and open mountainside, gaining 420m to 1,610m. The average gradient of 8.6% disguises ramps of 17.5% — the kind of gradient that turns plans into prayers. The 8 hairpin turns break up the climb, each one revealing a new perspective on the road ahead. The road reaches 1,610m — high enough to feel the altitude on tired legs. Located in Rhone-Alpes, France.