| Castle Rock to Montevarchi | 5,471.59 mi (8,805.68 km) |
| Castle Rock to Monticello Conte Otto | 5,370.77 mi (8,643.42 km) |
| Castle Rock to Montichiari | 5,338.57 mi (8,591.59 km) |
| Castle Rock to Montignoso | 5,398.13 mi (8,687.44 km) |
| Castle Rock to Montopoli in Val d'Arno | 5,435.81 mi (8,748.09 km) |
| Castle Rock to Monza | 5,291.51 mi (8,515.86 km) |
| Castle Rock to Morbegno | 5,275.56 mi (8,490.19 km) |
| Castle Rock to Mori | 5,338.05 mi (8,590.76 km) |
| Castle Rock to Morlupo | 5,573.07 mi (8,969.00 km) |
| Castle Rock to Morrovalle | 5,552.52 mi (8,935.92 km) |
| Castle Rock to Mortara | 5,288.88 mi (8,511.63 km) |
| Castle Rock to Mosciano Sant'Angelo | 5,591.36 mi (8,998.43 km) |
| Castle Rock to Motta di Livenza | 5,396.83 mi (8,685.36 km) |
| Castle Rock to Motta Sant'Anastasia | 5,896.42 mi (9,489.37 km) |
| Castle Rock to Mottola | 5,808.89 mi (9,348.50 km) |
