| Ridge to Maryland Heights (Missouri) | 944.23 mi (1,519.59 km) |
| Ridge to Marysville (California) | 2,545.83 mi (4,097.11 km) |
| Ridge to Marysville (Ohio) | 551.61 mi (887.73 km) |
| Ridge to Marysville (Washington) | 2,435.28 mi (3,919.20 km) |
| Ridge to Maryville (Missouri) | 1,150.73 mi (1,851.92 km) |
| Ridge to Maryville (Tennessee) | 698.41 mi (1,123.98 km) |
| Ridge to Mason (Ohio) | 612.27 mi (985.36 km) |
| Ridge to Mason City (Iowa) | 1,051.58 mi (1,692.36 km) |
| Ridge to Massapequa (New York) | 34.97 mi (56.27 km) |
| Ridge to Massapequa Park (New York) | 33.54 mi (53.97 km) |
| Ridge to Massillon (Ohio) | 451.69 mi (726.92 km) |
| Ridge to Mastic (New York) | 6.94 mi (11.17 km) |
| Ridge to Mastic Beach (New York) | 9.98 mi (16.06 km) |
| Ridge to Matteson (Illinois) | 772.87 mi (1,243.81 km) |
| Ridge to Matthews (North Carolina) | 583.91 mi (939.72 km) |
