| Barstow to Masanasa | 5,906.99 mi (9,506.37 km) |
| Barstow to Masquefa | 5,892.53 mi (9,483.10 km) |
| Barstow to Matadepera | 5,895.58 mi (9,488.02 km) |
| Barstow to Mazarron | 5,954.83 mi (9,583.37 km) |
| Barstow to Meco | 5,738.66 mi (9,235.48 km) |
| Barstow to Medina del Campo | 5,642.00 mi (9,079.92 km) |
| Barstow to Medina Sidonia | 5,814.29 mi (9,357.19 km) |
| Barstow to Mejorada del Campo | 5,743.38 mi (9,243.08 km) |
| Barstow to Meliana | 5,903.37 mi (9,500.55 km) |
| Barstow to Mengibar | 5,835.83 mi (9,391.86 km) |
| Barstow to Merida | 5,689.80 mi (9,156.85 km) |
| Barstow to Miajadas | 5,689.93 mi (9,157.05 km) |
| Barstow to Mieres | 5,522.42 mi (8,887.48 km) |
| Barstow to Miguelturra | 5,785.07 mi (9,310.18 km) |
| Barstow to Mijas | 5,862.90 mi (9,435.43 km) |
