Col d'Albanne via Les Karellis

The D81 rises 13.3km through wooded valleys and open mountainside, gaining 958m to 1,653m. A sustained 7.2% average gradient with a maximum of 10.2% makes this a steady and demanding ascent. 18 hairpins punctuate the ascent, offering brief respite in the corners before the gradient bites again. The road reaches 1,653m — high enough to feel the altitude on tired legs. Located in Rhone-Alpes, France.