Passo di Mortirolo (Mazzo)

Start Town Altitude Elevation Gain Length Gradient Difficulty Rating
Mazzo 1,852m 1,147m 12.0 km 9.6% 1,685 *****






Passo di Mortirolo - Mazzo - Cycling Profile

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Climb Description

Passo di Mortirolo from Mazzo is one of the iconic cycling climbs in the world. It is known primarily for its steep gradients and difficulty; however, it is also a fantastic road to ride - with almost no traffic and beautiful scenery.

A regular these days in the Giro d'Italia race, the Mortirolo from Mazzo is simply a great climb. The road begins by climbing steeply through villages and follows a long series of numbered hairpin bends. Shortly after the memorial to Marco Pantani it joins the ascent from Grosio and kicks up again until the finishing line .

The scenery is in forest for much of the ascent, with beautiful larch trees regularly giving way to offer spectacular views of the valley. Although, given the effort you will be putting in, it is not always so easy to appreciate it!

Mortirolo is best climbed from May to October, but can be open longer in some years.


Passo di Mortirolo from Mazzo - Italian Alps Cycling Climb

The road climbs steeply through beautiful scenery






Roads & Traffic

The road surface is in very good condition and there is almost no traffic throughout.


Top of Passo di Mortirolo from Mazzo

The top of the climb is a welcome and rewarding sight






Alternative Routes

Passo di Mortirolo can also be climbed from Edolo and from Grosio.





Nearby Climbs


Passo dello Stelvio

Passo di Gavia






Cycling Holidays

Passo di Mortirolo is climbed from Mazzo on our Dolomites & Italian Alps holiday, which tackles the iconic cycling ascents of Northern Italy .

In the links below you can find out more about this and some of the other tours that we run in high mountains.




Monte Zoncolan
Italian FlagItaly


Guided Cycling Holiday
Length: 9 Days
Level: Difficulty Challenging-Hard
Price: €1,630 EUR
Lagos de Covadonga
Spanish FlagSpain

Self-Guided Cycling Holiday
Length: 8 Days
Level: Difficulty Challenging-Hard
Price: from €1,130 EUR
French FlagFrance

Guided Cycling Holiday
Length: 8 Days
Level: Difficulty Challenging-Hard
Price: €1,350 EUR
*Bike Hire Included