Pietroni Bassi [ODbL 1.0] © contributori OpenStreetMap — https://www.openstreetmap.org/relation/5714826 ODbL 1.0 osm 2026-08-29T18:45:52Z Pietroni Bassi mtb 370.7 359.1 351.2 343.4 343.4 341.1 337.3 331.3 323.1 309.2 306.2 300.8 296.3 291.0 287.6 282.1 266.8 263.3 259.7 252.2