| Barstow to Miranda de Ebro | 5,657.80 mi (9,105.35 km) |
| Barstow to Mislata | 5,903.21 mi (9,500.30 km) |
| Barstow to Moana | 5,445.33 mi (8,763.42 km) |
| Barstow to Moguer | 5,739.47 mi (9,236.79 km) |
| Barstow to Molina de Segura | 5,937.71 mi (9,555.82 km) |
| Barstow to Molins de Rey | 5,904.37 mi (9,502.16 km) |
| Barstow to Mollerusa | 5,852.06 mi (9,417.98 km) |
| Barstow to Mollet | 5,905.77 mi (9,504.42 km) |
| Barstow to Moncada | 5,907.28 mi (9,506.84 km) |
| Barstow to Moncada | 5,900.69 mi (9,496.24 km) |
| Barstow to Monforte de Lemos | 5,485.23 mi (8,827.63 km) |
| Barstow to Monforte del Cid | 5,941.96 mi (9,562.67 km) |
| Barstow to Mongat | 5,911.62 mi (9,513.84 km) |
| Barstow to Monovar | 5,934.97 mi (9,551.41 km) |
| Barstow to Monserrat | 5,901.33 mi (9,497.27 km) |
