| Keystone to Mansfield | 4,342.48 mi (6,988.55 km) |
| Keystone to March | 4,403.49 mi (7,086.73 km) |
| Keystone to Margate | 4,475.90 mi (7,203.26 km) |
| Keystone to Market Drayton | 4,293.13 mi (6,909.12 km) |
| Keystone to Market Harborough | 4,363.15 mi (7,021.82 km) |
| Keystone to Marlow | 4,382.36 mi (7,052.72 km) |
| Keystone to Marple | 4,304.06 mi (6,926.72 km) |
| Keystone to Marton | 4,323.56 mi (6,958.09 km) |
| Keystone to Maryport | 4,231.32 mi (6,809.65 km) |
| Keystone to Matlock | 4,328.18 mi (6,965.53 km) |
| Keystone to Melksham | 4,328.11 mi (6,965.42 km) |
| Keystone to Meltham | 4,310.07 mi (6,936.39 km) |
| Keystone to Melton Mowbray | 4,360.44 mi (7,017.45 km) |
| Keystone to Merthyr Tudful | 4,270.87 mi (6,873.31 km) |
| Keystone to Methil | 4,234.10 mi (6,814.13 km) |
