The Passo del Mortirolo is famous for its
western ascent from Mazzo
but also the southeastern ascent from Édolo is considerable.
This climb includes two sections with a slope of about 12%.
The whole route can be divided into four parts.
The first part consists of the four and a half kilometers
from Édolo along the road towards the Passo del Tonale (SS42).
The slope is still modest here (mostly 4-5%)
and, due to the dense traffic, cycling here is not a real pleasure.
Then part two follows, beginning at the turnoff of the SS42 to the Mortirolo
and ending at hairpin turn number 12 behind Monno.
Here the landscape is open and the gradient varies between 6 and 9%.
Shortly before turn 12 the first section with a slope of 12% is encountered.
Then, for the next five kilometers the road runs through the forest,
with a slope that is considerable in the beginning (9%)
but that then gradually decreases (6-7% at the end).
The last quarter of the trip is the most beautiful part
with more views, with a more open forest
and with dispersed buildings.
This part has a very variable slope
and it includes the steepest kilometer (12.5%)
in a passage with a rapid succession of a dozen hairpin turns.
On the pass you can admire the heroes,
who have completed the climb from the west.