The Passo del Tonale is the highest point of the road connecting the regions of Lombardy, west of the pass, and Trentino-South Tyrol, east of the pass. The road is drawn as a red line in my atlas but the traffic was less heavy than I feared, maybe because I cycled here around midday. However, the trucks, which accounted for a significant portion of the traffic, were unpleasant. This webpage describes the climb to the pass from Cusiano in Trentino. This ascent bridges a difference of 921 meters in altitude and has a simple profile. Over the first 13 kilometers the gradient hardly varies . Of the 26 five hundred meter segments, 17 have a gradient of 7% and 6 a slope of 6%. After these 13 kilometers, there are still two kilometers left, which are less steep (3-4%). As you cycle up there are mighty snow- and ice-covered mountains, belonging to the Presanella group, to the left. The Presanella (3558 m) itself appears short after traversing the village of Vermiglio.