| Boulder to Marsala | 5,770.06 mi (9,286.02 km) |
| Boulder to Marsciano | 5,509.05 mi (8,865.96 km) |
| Boulder to Martano | 5,854.32 mi (9,421.62 km) |
| Boulder to Martellago | 5,371.95 mi (8,645.32 km) |
| Boulder to Martina Franca | 5,795.14 mi (9,326.37 km) |
| Boulder to Martinengo | 5,289.32 mi (8,512.33 km) |
| Boulder to Martinsicuro | 5,565.54 mi (8,956.86 km) |
| Boulder to Mascali | 5,874.12 mi (9,453.48 km) |
| Boulder to Mascalucia | 5,878.16 mi (9,459.98 km) |
| Boulder to Masera di Padova | 5,373.53 mi (8,647.87 km) |
| Boulder to Maserada sul Piave | 5,367.20 mi (8,637.67 km) |
| Boulder to Massa | 5,376.79 mi (8,653.11 km) |
| Boulder to Massa Lombarda | 5,414.78 mi (8,714.25 km) |
| Boulder to Massafra | 5,793.89 mi (9,324.36 km) |
| Boulder to Massalubrense | 5,696.20 mi (9,167.14 km) |
