PASSO DEL MORTIROLO
VALTELLINA · LOMBARDIA · ITALIA

PASSO DEL
MORTIROLO

Thirty-three hairpins. 10.5 % average. The hardest pass in Italy.

Height 1.852 M
Distance 12.4 KM
Ascent 1.300 HM
Gradient Ø 10.5 % · max 18 %

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01 / The story

PASSO DEL MORTIROLO.

No other pass in the Alps offers so little mercy over so short a distance. The Mortirolo is not a climb – it is a reckoning.

The Passo del Mortirolo lies in the heart of the Lombard Alps, between the Valtellina and the Val Camonica. At 1,852 metres it is no giant by altitude – but by gradient it stands alone. From Mazzo di Valtellina the ascent covers just 12.4 kilometres, yet the average gradient of 10.5 percent makes it the steepest road-cycling pass in the Alps. On several sections the gradient exceeds 18 percent.

The road itself is narrow, flanked by walls and rockfaces, barely wide enough for two vehicles to pass. There are no spectacular views in the first kilometres – only forest, asphalt, and the unambiguous logic of the slope. Only near the summit does the panorama open onto the Ortler Alps.

The Mortirolo was first climbed in the Giro d'Italia in 1990 – relatively late for a pass of its significance. But the stages decided here have written cycling history. Marco Pantani attacked in 1994 and 1999 with such devastating effect that his name is now commemorated on the pass: one hairpin today carries the sign "Pantani". Lance Armstrong later called the Mortirolo the hardest climb he ever rode.

Those who know the Mortirolo know one of the most intense experiences European cycling has to offer – not for the view, but for the merciless clarity of the ramp.

02 / Pass-DNA

Tour history & Records.

The Mortirolo has been included in the Giro d'Italia nine times. Each time it proved decisive. The most famous stage: Giro 1994, when Marco Pantani demolished Miguel Induráin and all the other favourites on the Mortirolo. Pantani's time on the climb remains a reference to this day.

In 1999 Pantani repeated his attack and took the pink jersey on the Mortirolo – just days before he was disqualified after a positive doping test. Hairpin 11, where his most dangerous attacks began, now bears his name.

Besides the Mazzo ascent there are two other approaches: from Edolo (easier, 13 km) and from Tovo di Sant'Agata. The Giro uses only the Mazzo ramp.

Height
1.852 M
Opened
ERSTBEFAHRUNG 1990
Country
Italia
03 / FAQ

What else you need you should know.

The poster shows the ascent from Mazzo di Valtellina: 12.4 km, 1,300 metres of altitude, average gradient 10.5%, maximum 18%. The elevation profile is rendered from official GPS data.

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