| Castle Rock to Middletown (Ohio) | 1,090.89 mi (1,755.62 km) |
| Castle Rock to Midland (Michigan) | 1,103.50 mi (1,775.91 km) |
| Castle Rock to Midland (Texas) | 530.63 mi (853.97 km) |
| Castle Rock to Midlothian (Illinois) | 911.68 mi (1,467.20 km) |
| Castle Rock to Midlothian (Texas) | 648.72 mi (1,044.01 km) |
| Castle Rock to Midlothian (Virginia) | 1,472.47 mi (2,369.71 km) |
| Castle Rock to Midvale (Utah) | 382.18 mi (615.06 km) |
| Castle Rock to Midway (Florida) | 1,181.68 mi (1,901.73 km) |
| Castle Rock to Midwest City (Oklahoma) | 491.35 mi (790.76 km) |
| Castle Rock to Milford (Delaware) | 1,570.42 mi (2,527.35 km) |
| Castle Rock to Milford city (Connecticut) | 1,670.74 mi (2,688.79 km) |
| Castle Rock to Milford Mill (Maryland) | 1,494.30 mi (2,404.84 km) |
| Castle Rock to Mililani Mauka (Hawaii) | 3,345.07 mi (5,383.37 km) |
| Castle Rock to Mililani Town (Hawaii) | 3,347.26 mi (5,386.89 km) |
| Castle Rock to Mill Creek (Washington) | 1,043.60 mi (1,679.52 km) |
