4 - 5
FATMAP difficulty grade
From Erba go up to Canzo, past Asso continue on the SP41 passing the intersection for Valbrona, then turn left to Sormano.
After the Colma di Sormano go down to Pian del Tivano, just after the descent park in front of the Binda farm.
Turn right a little further on into a small road with indications for Alpetto di Torno, here the SE ridge rises. From the Alpetto di Torno pass the last farms then climb through the wide meadows until you reach the ridge between Monte Ponciv and Cima del Costone. Descent for ascent itineraries.