| Keystone to Middletown (Ohio) | 792.20 mi (1,274.92 km) |
| Keystone to Midland (Michigan) | 1,074.29 mi (1,728.90 km) |
| Keystone to Midland (Texas) | 1,195.55 mi (1,924.06 km) |
| Keystone to Midlothian (Illinois) | 976.05 mi (1,570.81 km) |
| Keystone to Midlothian (Texas) | 908.22 mi (1,461.64 km) |
| Keystone to Midlothian (Virginia) | 707.01 mi (1,137.82 km) |
| Keystone to Midvale (Utah) | 1,867.68 mi (3,005.74 km) |
| Keystone to Midway (Florida) | 309.80 mi (498.57 km) |
| Keystone to Midwest City (Oklahoma) | 1,002.82 mi (1,613.89 km) |
| Keystone to Milford (Delaware) | 851.02 mi (1,369.58 km) |
| Keystone to Milford city (Connecticut) | 1,053.02 mi (1,694.68 km) |
| Keystone to Milford Mill (Maryland) | 843.63 mi (1,357.69 km) |
| Keystone to Mililani Mauka (Hawaii) | 4,677.23 mi (7,527.28 km) |
| Keystone to Mililani Town (Hawaii) | 4,679.19 mi (7,530.43 km) |
| Keystone to Mill Creek (Washington) | 2,511.07 mi (4,041.18 km) |
