Passo San Marco

Lombardy, Italy

Gradient:
<4%
4–7%
7–10%
10–12%
>12%

APPROACH ROUTES

Passo San Marco is a Hors Catégorie ascent in Lombardy, Italy, topping out at 1 991 m. The Morbegno approach is the hardest — 26.0 km at 6.6%, 1 722 m gained, maxing at 17.6%. The steepest kilometre averages 14.2%, around km 13.6. It can also be climbed from Olmo al Brembo (20.1 km at 7.1%): 2 measured approaches in all, each profiled kilometre-by-kilometre against Copernicus GLO-30 elevation data. On the Fiets scale it rates 12.4, among the region's hardest. Late spring through autumn offers the most reliable conditions on the pass.