| South River to Marrero (Louisiana) | 1,146.64 mi (1,845.33 km) |
| South River to Marshall (Minnesota) | 1,122.55 mi (1,806.58 km) |
| South River to Marshall (Missouri) | 1,001.77 mi (1,612.19 km) |
| South River to Marshall (Texas) | 1,232.83 mi (1,984.05 km) |
| South River to Marshalltown (Iowa) | 966.97 mi (1,556.18 km) |
| South River to Marshfield (Wisconsin) | 853.37 mi (1,373.36 km) |
| South River to Martha Lake (Washington) | 2,387.07 mi (3,841.62 km) |
| South River to Martin (Tennessee) | 832.34 mi (1,339.53 km) |
| South River to Martinez (California) | 2,529.60 mi (4,071.00 km) |
| South River to Martinez (Georgia) | 640.13 mi (1,030.19 km) |
| South River to Martinsburg (West Virginia) | 202.46 mi (325.82 km) |
| South River to Martinsville (Indiana) | 642.06 mi (1,033.30 km) |
| South River to Martinsville (New Jersey) | 15.01 mi (24.15 km) |
| South River to Martinsville (Virginia) | 394.08 mi (634.21 km) |
| South River to Maryland City (Maryland) | 158.83 mi (255.61 km) |
