The southern ascent begins on the SP110 coming from Via Guiseppe Mazzini. The first part leads relatively sharply up along the river before crossing it and turning right. From here, things really get going. Following several bends and straights, you reach a bridge after about 3.8 to 4 km and change from the west to the east flank of the mountain. Here you come to a relatively dark passage in a tunnel, but lights are recommended. Shortly after that, there is a second, unlit but very short tunnel. Shortly after that, you change back to the west flank. From here, a winding ascent begins with lots of bends, which repeatedly offers different perspectives back. The only problem here is the gradient of over 9 percent and more, so that (unfortunately) you tend to look at your handlebars as you drive up the mountain and hope that it will finally end. It's a very nice drive up, with impressive rock faces appearing next to you as you follow the winding road past all sorts of monuments. Once you get to the top, you're glad you survived the mountain, as the local mountains are characterized by their lack of rhythm and steepness. At the top, there are various restaurants and a total of three possible pass signs: directly at the "Al Gallo Forcello" hotel, in the middle of the lake, which is located above, and at the former border crossing.