| Ridge to Marrero (Louisiana) | 1,229.57 mi (1,978.80 km) |
| Ridge to Marshall (Minnesota) | 1,184.93 mi (1,906.97 km) |
| Ridge to Marshall (Missouri) | 1,079.95 mi (1,738.01 km) |
| Ridge to Marshall (Texas) | 1,317.40 mi (2,120.15 km) |
| Ridge to Marshalltown (Iowa) | 1,037.28 mi (1,669.34 km) |
| Ridge to Marshfield (Wisconsin) | 912.39 mi (1,468.35 km) |
| Ridge to Martha Lake (Washington) | 2,440.82 mi (3,928.11 km) |
| Ridge to Martin (Tennessee) | 916.37 mi (1,474.76 km) |
| Ridge to Martinez (California) | 2,599.61 mi (4,183.66 km) |
| Ridge to Martinez (Georgia) | 718.65 mi (1,156.55 km) |
| Ridge to Martinsburg (West Virginia) | 286.96 mi (461.82 km) |
| Ridge to Martinsville (Indiana) | 722.13 mi (1,162.15 km) |
| Ridge to Martinsville (New Jersey) | 91.09 mi (146.59 km) |
| Ridge to Martinsville (Virginia) | 475.70 mi (765.57 km) |
| Ridge to Maryland City (Maryland) | 242.19 mi (389.77 km) |
