| Ponte da Barca to McKeesport (Pennsylvania) | 3,608.95 mi (5,808.04 km) |
| Ponte da Barca to McKinleyville (California) | 5,449.79 mi (8,770.59 km) |
| Ponte da Barca to McKinney (Texas) | 4,658.03 mi (7,496.37 km) |
| Ponte da Barca to McLean (Virginia) | 3,526.23 mi (5,674.92 km) |
| Ponte da Barca to McMinnville (Oregon) | 5,206.00 mi (8,378.24 km) |
| Ponte da Barca to McMinnville (Tennessee) | 4,047.66 mi (6,514.07 km) |
| Ponte da Barca to McNair (Virginia) | 3,536.42 mi (5,691.31 km) |
| Ponte da Barca to McPherson (Kansas) | 4,496.09 mi (7,235.75 km) |
| Ponte da Barca to Mead Valley (California) | 5,538.71 mi (8,913.68 km) |
| Ponte da Barca to Meadow Woods (Florida) | 4,103.16 mi (6,603.39 km) |
| Ponte da Barca to Meadowbrook (Virginia) | 3,587.59 mi (5,773.68 km) |
| Ponte da Barca to Meadville (Pennsylvania) | 3,583.23 mi (5,766.65 km) |
| Ponte da Barca to Mebane (North Carolina) | 3,719.50 mi (5,985.96 km) |
| Ponte da Barca to Mechanicsville (Virginia) | 3,575.57 mi (5,754.32 km) |
| Ponte da Barca to Medford (Massachusetts) | 3,137.10 mi (5,048.67 km) |
