Sentiero dell'arbrun [ODbL 1.0] © contributori OpenStreetMap — https://www.openstreetmap.org/relation/6654539 Proloco di Vialfrè ODbL 1.0 osm 2026-08-29T18:45:52Z Sentiero dell'arbrun mtb 461.7 451.6 443.1 440.2 439.4 431.5 431.5 431.0 423.0 425.3 425.5 422.0 420.7 423.8 424.0 422.0 422.3 424.8 428.3