| South River to Montgomeryville (Pennsylvania) | 47.36 mi (76.23 km) |
| South River to Monticello (Minnesota) | 1,035.96 mi (1,667.21 km) |
| South River to Montrose (Colorado) | 1,780.61 mi (2,865.61 km) |
| South River to Moody (Alabama) | 817.69 mi (1,315.95 km) |
| South River to Moore (Oklahoma) | 1,303.90 mi (2,098.42 km) |
| South River to Moorestown-Lenola (New Jersey) | 45.32 mi (72.94 km) |
| South River to Mooresville (North Carolina) | 485.54 mi (781.40 km) |
| South River to Moorhead (Minnesota) | 1,197.75 mi (1,927.59 km) |
| South River to Moorpark (California) | 2,454.04 mi (3,949.40 km) |
| South River to Moraga (California) | 2,533.46 mi (4,077.21 km) |
| South River to Moreno Valley (California) | 2,376.27 mi (3,824.24 km) |
| South River to Morgan City (Louisiana) | 1,202.49 mi (1,935.23 km) |
| South River to Morgan Hill (California) | 2,525.31 mi (4,064.09 km) |
| South River to Morganton (North Carolina) | 513.66 mi (826.66 km) |
| South River to Morgantown (West Virginia) | 299.71 mi (482.34 km) |
