Mortirolo Pass from Mazzo di Valtellina

Route overview

Cyclists prepared for a short but very steep and sustained climb.

Mortirolo Pass from Mazzo di Valtellina, Italy, 8.1 km climb with 875 m gain.

Starting at Mazzo di Valtellina at 980 m elevation, the route climbs 8.1 km to the Mortirolo Pass at 1856 m. The ascent has an average gradient of 10.8% and a maximum of 14.7%, with 99% of the route uphill. Climbing is very steep throughout, with 7.9 km over 5%, 7.2 km over 8%, and 4.8 km over 10% gradients. The first half accounts for 72% of the elevation gain. The entire route is paved, riding 62% on minor roads including 5 km on Strada del Mortirolo and 40% on main roads, specifically 3.2 km on SS42 dir/A, all lacking cycle lanes. There is a stretch of 3.3 km between 3.7 and 7 km with no cafés, shops, or water. Drinking water is available off-route near 0.7 km, 3.7 km, and 7.5 km. At the top, 8 km, there are toilets and a bike repair stand close by. The route passes beneath Dos Signöl peak at 1953 m near the summit. This point-to-point climb is strictly uphill and suited for those ready to face sustained steep gradients on mixed road classes.

Highlights

• Mortirolo Pass summit at 1856 m
• Dos Signöl peak near the top
• Steep climb averaging 10.8%
• 100% paved surface

Practical information

Surface

Paved

Route shape

Point to point

Riding time

35 min

Best months

May to Oct — daily highs of 15–25 °C in those months

Know before you go

• 3.3 km without café, shop, or water between km 3.7 and 7
• 3.2 km on main roads without a cycle lane
• Sustained steep gradient up to 14.7%
• Almost entire route uphill with 99% climbing

Routes are for inspiration. Roads, surfaces and conditions change — check locally and ride within your limits.