| Altamont to McKeesport (Pennsylvania) | 2,156.77 mi (3,470.99 km) |
| Altamont to McKinleyville (California) | 149.46 mi (240.54 km) |
| Altamont to McKinney (Texas) | 1,496.94 mi (2,409.09 km) |
| Altamont to McLean (Virginia) | 2,321.33 mi (3,735.82 km) |
| Altamont to McMinnville (Oregon) | 220.69 mi (355.16 km) |
| Altamont to McMinnville (Tennessee) | 1,967.81 mi (3,166.89 km) |
| Altamont to McNair (Virginia) | 2,310.19 mi (3,717.89 km) |
| Altamont to McPherson (Kansas) | 1,291.04 mi (2,077.73 km) |
| Altamont to Mead Valley (California) | 626.19 mi (1,007.76 km) |
| Altamont to Meadow Woods (Florida) | 2,441.74 mi (3,929.61 km) |
| Altamont to Meadowbrook (Virginia) | 2,344.92 mi (3,773.79 km) |
| Altamont to Meadville (Pennsylvania) | 2,116.29 mi (3,405.83 km) |
| Altamont to Mebane (North Carolina) | 2,289.53 mi (3,684.64 km) |
| Altamont to Mechanicsville (Virginia) | 2,345.82 mi (3,775.23 km) |
| Altamont to Medford (Massachusetts) | 2,546.67 mi (4,098.46 km) |
