Passo del Tonale is a high mountain pass at an elevation of 1.883m (6,178ft) above the sea level, located in northern Italy across the Rhaetian Alps, between Lombardy and Trentino. The pass is traversed by the narrow and technical SS42 road.
Located in the Italian Dolomites, the paved Strada Statale 42 (SS42) road over the pass connects Valcamonica and Val di Sole. It is delimited by the Ortler Alps to the north and the Adamello range to the south. The road is very windy in places and is extremely narrow most of the way. The pass plays host to many hotels and shops for tourists in the winter. The drive offers wild and spectacular scenery.
The pass has been climbed by the Giro d’Italia. There are 2 routes to reach the summit. Starting from Fucine, the ascent is 15.2 km long. Over this distance, the elevation gain is 919 meters. The average percentage is 6 %. And starting from Ponte di Legno, the ascent is 10.9 km long. Over this distance, the elevation gain is 646 meters. The average percentage is 5.9 %.