Schwammhöhe from Klöntalersee

The Sackbergstrasse rises 3.3km through rolling hills and mountain roads, gaining 248m to 1,103m. Averaging 7.6%, the road kicks to 12.6% at its steepest — a serious ramp that demands respect. The 4 hairpin turns break up the climb, each one revealing a new perspective on the road ahead. Located in Glarus, Switzerland.