| Keystone to Monroe (Washington) | 2,501.39 mi (4,025.59 km) |
| Keystone to Monroe (Wisconsin) | 1,074.66 mi (1,729.49 km) |
| Keystone to Monroeville (Pennsylvania) | 864.69 mi (1,391.58 km) |
| Keystone to Monrovia (California) | 2,122.96 mi (3,416.58 km) |
| Keystone to Monsey (New York) | 1,018.76 mi (1,639.53 km) |
| Keystone to Montclair (California) | 2,105.98 mi (3,389.25 km) |
| Keystone to Montclair (Virginia) | 784.74 mi (1,262.91 km) |
| Keystone to Montebello (California) | 2,129.51 mi (3,427.11 km) |
| Keystone to Monterey (California) | 2,348.50 mi (3,779.54 km) |
| Keystone to Monterey Park (California) | 2,130.81 mi (3,429.20 km) |
| Keystone to Montgomery (Alabama) | 364.36 mi (586.38 km) |
| Keystone to Montgomery (Illinois) | 993.65 mi (1,599.12 km) |
| Keystone to Montgomery (Ohio) | 774.69 mi (1,246.74 km) |
| Keystone to Montgomery Village (Maryland) | 823.74 mi (1,325.68 km) |
| Keystone to Montgomeryville (Pennsylvania) | 936.16 mi (1,506.60 km) |
