The River Toce flows across the Antigorio Valley. The valley begins to the south, near Domodossola, it rises to the north, it includes the towns of Crevoladossola, Crodo, Baceno, Premia. It ends in the hamlet of Premia Chioso. The valley continues to the north is called Val Formazza. From Baceno opens to the north-west of the Valley Devero, from which you can reach Alpe Devero.