| Rapid City to Maryland Heights (Missouri) | 755.88 mi (1,216.46 km) |
| Rapid City to Marysville (California) | 1,005.06 mi (1,617.48 km) |
| Rapid City to Marysville (Ohio) | 1,048.60 mi (1,687.56 km) |
| Rapid City to Marysville (Washington) | 946.11 mi (1,522.62 km) |
| Rapid City to Maryville (Missouri) | 498.64 mi (802.48 km) |
| Rapid City to Maryville (Tennessee) | 1,166.65 mi (1,877.54 km) |
| Rapid City to Mason (Ohio) | 1,025.90 mi (1,651.03 km) |
| Rapid City to Mason City (Iowa) | 505.02 mi (812.76 km) |
| Rapid City to Massapequa (New York) | 1,528.21 mi (2,459.42 km) |
| Rapid City to Massapequa Park (New York) | 1,528.94 mi (2,460.59 km) |
| Rapid City to Massillon (Ohio) | 1,126.03 mi (1,812.17 km) |
| Rapid City to Mastic (New York) | 1,555.97 mi (2,504.10 km) |
| Rapid City to Mastic Beach (New York) | 1,557.47 mi (2,506.50 km) |
| Rapid City to Matteson (Illinois) | 802.98 mi (1,292.28 km) |
| Rapid City to Matthews (North Carolina) | 1,342.54 mi (2,160.60 km) |
