From Arnoga follow the carriage road that halfway up the Viola valley and past the detours to Sattarona, Val Verva, and Stagimel, you arrive after about 50 minutes at a detour. Leaving the road that climbs toward Altumeira, you descend again on a snow-covered road to the Caricc locality where just before, or shortly after, the Agroturismo Baita Caricc (1990 m), you cross the bridge over the Viola stream and climb to the right following the mule track that leads to the magnificent Dosde' plain. Then you bring yourself near the Federico refuge of CAI Bormio (2133 m) and descend to the bridge on the right to cross the Viola stream and continue along the valley floor until you enter the valley of Canton Dosde' . When you reach a bridge, cross it and begin to climb into the vast, funnel-shaped, shallow slope to the left of the clearly visible Bivacco Caldarini (2503 m). (This point can also be reached by standing to the left of the stream to the bottom of the plain.) You skirt the obvious rocky outcrop to the right and, having arrived in a flatter area, turn sharply to the left going up a steep ridge, or even further to the left a small valley leading to the base of the western Dosde' glacier. You bear sharply left near the n-e ridge and climb the steepest section of the ascent (30 to 40). The last section sags a little and bending to the right you reach a vent and leftward in the vicinity of the ridge and hike up the ridge to the summit (3262 m).