| Ridge to McHenry (Illinois) | 801.00 mi (1,289.09 km) |
| Ridge to McKeesport (Pennsylvania) | 367.10 mi (590.79 km) |
| Ridge to McKinleyville (California) | 2,633.19 mi (4,237.71 km) |
| Ridge to McKinney (Texas) | 1,409.79 mi (2,268.83 km) |
| Ridge to McLean (Virginia) | 265.69 mi (427.59 km) |
| Ridge to McMinnville (Oregon) | 2,515.81 mi (4,048.81 km) |
| Ridge to McMinnville (Tennessee) | 785.88 mi (1,264.76 km) |
| Ridge to McNair (Virginia) | 275.37 mi (443.17 km) |
| Ridge to McPherson (Kansas) | 1,325.49 mi (2,133.17 km) |
| Ridge to Mead Valley (California) | 2,459.66 mi (3,958.45 km) |
| Ridge to Meadow Woods (Florida) | 989.71 mi (1,592.78 km) |
| Ridge to Meadowbrook (Virginia) | 343.73 mi (553.19 km) |
| Ridge to Meadville (Pennsylvania) | 380.59 mi (612.50 km) |
| Ridge to Mebane (North Carolina) | 479.80 mi (772.16 km) |
| Ridge to Mechanicsville (Virginia) | 329.55 mi (530.37 km) |
