Sentiero 321 [ODbL 1.0] © contributori OpenStreetMap — https://www.openstreetmap.org/relation/14376825 ODbL 1.0 osm 2026-08-29T18:45:52Z Sentiero 321 mtb 445.9 444.6 443.0 442.3 440.0 431.8 432.2 414.3 410.2 406.4 407.8 403.9 399.6 398.6 397.9 390.8 391.6 390.8 385.1 382.1 375.2 372.1 373.1 372.3 371.3 365.3 364.3 358.2 355.7 355.0 354.4 353.9 355.0 355.6 355.7 362.6 365.6 369.1 370.7 372.8 376.1 377.3 376.1 382.6 386.4 381.2 385.5 384.1 383.2 377.9 379.1 366.3 365.1 358.7 357.2 361.8 361.6 350.7 346.2 320.1 308.2 306.4 306.5 302.2 302.6 304.0 307.2 307.1 298.6 297.7 293.6 289.5 279.2 271.4 268.1