Passo Tonale carries the SS42 over the Rhaetian Alps between Lombardy's Val Camonica and Trentino's Val di Sole, splitting the Adamello and Ortles-Cevedale ranges. From Ponte di Legno the west side is the classic approach, a steady climb on never-brutal gradients that the Giro d'Italia has used repeatedly, including the 2010 finish at Ponte di Legno-Tonale won by Ivan Basso. The pass marked the Italy/Austria-Hungary border until 1918 and saw heavy fighting in the WWI 'Guerra Bianca'; a 1924 military memorial near the summit honours over 800 dead from those mountain battles.
Passo Tonale
1883 m · Italy
Also: Passo del Tonale · Tonalepass
Road SS42
Open on the map →The side
| From | Length | Gain | Avg | Max | Cat |
|---|---|---|---|---|---|
| Fucine | 14.7 km | +903 m | 6.1% | ≈8.6% | HC |
From Fucine
Hors catégorie≈5 hairpin bendsfaces NE
0–4%4–7%7–10%10–12%12%+

The climb
Race history
29× Giro d'Italia · 2 summit finishes · 1933–2022