| River Grove to Masanasa | 4,371.23 mi (7,034.81 km) |
| River Grove to Masquefa | 4,387.64 mi (7,061.23 km) |
| River Grove to Matadepera | 4,392.86 mi (7,069.62 km) |
| River Grove to Mazarron | 4,399.82 mi (7,080.83 km) |
| River Grove to Meco | 4,198.10 mi (6,756.18 km) |
| River Grove to Medina del Campo | 4,100.37 mi (6,598.90 km) |
| River Grove to Medina Sidonia | 4,230.98 mi (6,809.11 km) |
| River Grove to Mejorada del Campo | 4,201.18 mi (6,761.15 km) |
| River Grove to Meliana | 4,368.88 mi (7,031.04 km) |
| River Grove to Mengibar | 4,272.09 mi (6,875.26 km) |
| River Grove to Merida | 4,122.18 mi (6,634.02 km) |
| River Grove to Miajadas | 4,125.36 mi (6,639.13 km) |
| River Grove to Mieres | 3,994.61 mi (6,428.71 km) |
| River Grove to Miguelturra | 4,228.43 mi (6,805.00 km) |
| River Grove to Mijas | 4,285.70 mi (6,897.17 km) |
