Kolsassberg from Kolsass

The Rettenbergstrasse rises 4.8km through rolling hills and mountain roads, gaining 555m to 1,121m. Averaging 11.5%, the road kicks to 19.2% at its steepest — a brutal pitch that demands respect. The 4 hairpin turns break up the climb, each one revealing a new perspective on the road ahead. Located in Tyrol, Austria.