| Castleton to Masanasa | 983.46 mi (1,582.72 km) |
| Castleton to Masquefa | 855.24 mi (1,376.38 km) |
| Castleton to Matadepera | 850.63 mi (1,368.95 km) |
| Castleton to Mazarron | 1,105.73 mi (1,779.50 km) |
| Castleton to Meco | 902.35 mi (1,452.20 km) |
| Castleton to Medina del Campo | 858.65 mi (1,381.87 km) |
| Castleton to Medina Sidonia | 1,196.77 mi (1,926.01 km) |
| Castleton to Mejorada del Campo | 913.37 mi (1,469.93 km) |
| Castleton to Meliana | 975.47 mi (1,569.86 km) |
| Castleton to Mengibar | 1,082.20 mi (1,741.63 km) |
| Castleton to Merida | 1,033.85 mi (1,663.82 km) |
| Castleton to Miajadas | 1,014.48 mi (1,632.65 km) |
| Castleton to Mieres | 733.03 mi (1,179.69 km) |
| Castleton to Miguelturra | 1,013.89 mi (1,631.70 km) |
| Castleton to Mijas | 1,179.88 mi (1,898.83 km) |
