Puerto del Portalet d'Aneu from Biescas

The A-136 rises 27km through wooded valleys and open mountainside, gaining 965m to 1,794m. The average gradient of 3.6% disguises ramps of 9% — the kind of gradient that turns plans into prayers. This is a climb of endurance — the kind of effort measured in hours, where pacing matters more than power. The road reaches 1,794m — high enough to feel the altitude on tired legs. Located in Aragon, Spain.