Puerto de Ventana from San Martín

The AS-228 rises 19.3km through wooded valleys and open mountainside, gaining 1,134m to 1,583m. The average gradient of 5.9% disguises ramps of 12.4% — the kind of gradient that turns plans into prayers. The 4 hairpin turns break up the climb, each one revealing a new perspective on the road ahead. The road reaches 1,583m — high enough to feel the altitude on tired legs. Located in Asturias, Spain.