The Sentiero del Viandante (Wayfarer's Path) does not retrace an ancient route, but is the result of the union of a number of paths that in the past united the towns on the Lecco side of the lake and that in turn were part of a larger system of routes from Milan to the Alpine passes.
As for the stage in lower Valtellina, recently added to the original route, past the town of Colico (LC) it continues to Piantedo where the original route ends near the Sanctuary of the Madonna di Val Pozzo. From the Sanctuary, the trail continues on the Orobic side of the lower Valtellina among the chestnut forests of the municipalities of Piantedo, Delebio, Andalo Valtellino, Rogolo, and Cosio Valtellino (where the ruins of the ancient Romanesque Abbey of San Pietro in Vallate are encountered) and then climbs towards the village of Sacco in the Bitto Valley and then descends towards Morbegno, where the trail ends near the train station.