| Boulder to Mancha Real | 5,128.08 mi (8,252.85 km) |
| Boulder to Manilva | 5,117.96 mi (8,236.56 km) |
| Boulder to Manises | 5,185.64 mi (8,345.48 km) |
| Boulder to Manlleu | 5,181.81 mi (8,339.31 km) |
| Boulder to Manresa | 5,176.46 mi (8,330.70 km) |
| Boulder to Manzanares | 5,085.91 mi (8,184.98 km) |
| Boulder to Manzanares el Real | 4,991.46 mi (8,032.99 km) |
| Boulder to Maracena | 5,152.61 mi (8,292.33 km) |
| Boulder to Marbella | 5,128.20 mi (8,253.04 km) |
| Boulder to Marchena | 5,070.12 mi (8,159.57 km) |
| Boulder to Marin | 4,721.97 mi (7,599.28 km) |
| Boulder to Marratxi | 5,307.65 mi (8,541.84 km) |
| Boulder to Martorell | 5,191.79 mi (8,355.38 km) |
| Boulder to Martos | 5,116.00 mi (8,233.41 km) |
| Boulder to Masamagrell | 5,186.67 mi (8,347.15 km) |
