This route takes you through Valle di Sasso Bisolo, a side valley of Valmasino, with starting point in Filorera. The road is tarmacked even on the new stretches on the left-hand side of the valley, which have, over the years, replaced the old route, destroyed by a landslide. It has a fairly high average gradient, with some parts over 10%, also calling for use of medium pedal assist. About halfway up, you come to the beautiful plain of Sasso Bisolo and Rifiugio Scotti. The climb then continues with a series of hairpins that lead to a car park. A short stretch over very loose terrain with big stones takes you to the big Piano di Preda Rossa, dominated by Monte Disgrazia and Corni Bruciati