| Blackburn to McKeesport (Pennsylvania) | 3,567.74 mi (5,741.72 km) |
| Blackburn to McKinleyville (California) | 5,035.15 mi (8,103.29 km) |
| Blackburn to McKinney (Texas) | 4,565.61 mi (7,347.64 km) |
| Blackburn to McLean (Virginia) | 3,529.73 mi (5,680.55 km) |
| Blackburn to McMinnville (Oregon) | 4,762.33 mi (7,664.23 km) |
| Blackburn to McMinnville (Tennessee) | 4,023.50 mi (6,475.19 km) |
| Blackburn to McNair (Virginia) | 3,537.92 mi (5,693.73 km) |
| Blackburn to McPherson (Kansas) | 4,331.71 mi (6,971.22 km) |
| Blackburn to Mead Valley (California) | 5,246.94 mi (8,444.13 km) |
| Blackburn to Meadow Woods (Florida) | 4,219.86 mi (6,791.20 km) |
| Blackburn to Meadowbrook (Virginia) | 3,612.52 mi (5,813.79 km) |
| Blackburn to Meadville (Pennsylvania) | 3,518.74 mi (5,662.87 km) |
| Blackburn to Mebane (North Carolina) | 3,748.71 mi (6,032.97 km) |
| Blackburn to Mechanicsville (Virginia) | 3,598.49 mi (5,791.20 km) |
| Blackburn to Medford (Massachusetts) | 3,131.56 mi (5,039.76 km) |
