| Gateway to Marshall (Minnesota) | 1,460.96 mi (2,351.19 km) |
| Gateway to Marshall (Missouri) | 1,089.94 mi (1,754.09 km) |
| Gateway to Marshall (Texas) | 861.37 mi (1,386.24 km) |
| Gateway to Marshalltown (Iowa) | 1,240.88 mi (1,997.01 km) |
| Gateway to Marshfield (Wisconsin) | 1,334.28 mi (2,147.31 km) |
| Gateway to Martha Lake (Washington) | 2,624.51 mi (4,223.73 km) |
| Gateway to Martin (Tennessee) | 793.19 mi (1,276.51 km) |
| Gateway to Martinez (California) | 2,464.64 mi (3,966.45 km) |
| Gateway to Martinez (Georgia) | 480.08 mi (772.62 km) |
| Gateway to Martinsburg (West Virginia) | 915.97 mi (1,474.10 km) |
| Gateway to Martinsville (Indiana) | 927.13 mi (1,492.07 km) |
| Gateway to Martinsville (New Jersey) | 1,052.18 mi (1,693.31 km) |
| Gateway to Martinsville (Virginia) | 706.74 mi (1,137.39 km) |
| Gateway to Maryland City (Maryland) | 911.07 mi (1,466.23 km) |
| Gateway to Maryland Heights (Missouri) | 979.38 mi (1,576.15 km) |
