Introbio (province of Lecco) - " ...while passing through the Troggia valley, the saint became thirsty, and like Moses, split a rock with a blow from his walking stick, causing fresh water to miraculously flow through the crevices. " Even if it's the sort of thing that spawns legend, it wasn't like I was dead set on finding the spot where San Carlo performed a miracle with a mere ka-thunk! to stone. Rather instead, it was an opportunity to experience the first part of a trail which promised a pleasant hike even in winter. This initial trek took us from Introbio to the midway point of Ponte dei Ladri (bridge of thieves) which crosses the Troggia river. The bridge is much more recognizable as the last parking area for those wanting to get a headstart on the trail to higher altitude mountain huts which are further along the way (Tavecchia, Bocca di Biandino, and Madonna della Neve). Only authorized vehicles are allowed to continue from then on. See google maps .