| Clayton to Montijo | 1,052.18 mi (1,693.32 km) |
| Clayton to Montilla | 1,127.24 mi (1,814.12 km) |
| Clayton to Montmelo | 865.36 mi (1,392.65 km) |
| Clayton to Montornes del Valles | 866.22 mi (1,394.05 km) |
| Clayton to Montoro | 1,096.08 mi (1,763.97 km) |
| Clayton to Monzon | 825.43 mi (1,328.40 km) |
| Clayton to Mora | 978.41 mi (1,574.59 km) |
| Clayton to Moralzarzal | 911.13 mi (1,466.32 km) |
| Clayton to Moron de la Frontera | 1,164.12 mi (1,873.47 km) |
| Clayton to Mostoles | 934.12 mi (1,503.33 km) |
| Clayton to Motril | 1,179.62 mi (1,898.42 km) |
| Clayton to Muchamiel | 1,063.82 mi (1,712.06 km) |
| Clayton to Mula | 1,087.64 mi (1,750.39 km) |
| Clayton to Munguia | 721.98 mi (1,161.92 km) |
| Clayton to Murcia | 1,091.87 mi (1,757.20 km) |
