| Highlands Ranch to Mangualde | 4,841.39 mi (7,791.46 km) |
| Highlands Ranch to Marco de Canavezes | 4,801.67 mi (7,727.54 km) |
| Highlands Ranch to Marinha Grande | 4,825.10 mi (7,765.24 km) |
| Highlands Ranch to Massama | 4,849.82 mi (7,805.03 km) |
| Highlands Ranch to Matosinhos | 4,778.25 mi (7,689.85 km) |
| Highlands Ranch to Mealhada | 4,820.72 mi (7,758.20 km) |
| Highlands Ranch to Melgaco | 4,759.75 mi (7,660.08 km) |
| Highlands Ranch to Melres | 4,795.66 mi (7,717.87 km) |
| Highlands Ranch to Mira | 4,806.55 mi (7,735.39 km) |
| Highlands Ranch to Miranda do Corvo | 4,837.06 mi (7,784.50 km) |
| Highlands Ranch to Mirandela | 4,830.56 mi (7,774.04 km) |
| Highlands Ranch to Mogadouro | 4,856.26 mi (7,815.40 km) |
| Highlands Ranch to Moimenta da Beira | 4,832.60 mi (7,777.31 km) |
| Highlands Ranch to Moita | 4,866.91 mi (7,832.53 km) |
| Highlands Ranch to Moncao | 4,752.48 mi (7,648.38 km) |
