From the Torri di Fraele climb military track N197.1 through a dense pine forest until you reach a shoulder at the foot of a rocky wall. Follow a ledge then climb up through rocks, gullies and screes along the trail. The final bend brings you to the clearing where the Monte Scale barracks stands. From inside the barracks, a gallery with two powder magazines allows you to cross under the pass and come out on the opposite side of the mountain. A narrow trail brings you to the Cross of Monte Scale with excellent views over the Bormio area. Return via the northern side of Monte Scale along path N197. Initially the track leads through thin pastures then enters a dense forest of pines until you reach the Casina del Lago, today a private shelter for fishermen on the quiet Lago delle Scale. Walk around the lake to return to your starting point.