Mortirolo Pass (from Mazzo di Valtellina) - HC / 12km / 11%
Passo di Mortirolo (Grosio) - Italian Alps Cycling Climbs
La Vie en Vélo on Twitter: "The Mortirolo Utterly heinous! Without doubt the single hardest climb that i take people to. Chapeau, gentlemen! #cycling #cyclinglife #outsideisfree #ridewithmates #roadstoride #cyclingholiday #roadslikethese #italianalps ...