| River Falls to Miranda de Ebro | 4,231.82 mi (6,810.45 km) |
| River Falls to Mislata | 4,470.35 mi (7,194.34 km) |
| River Falls to Moana | 4,004.52 mi (6,444.65 km) |
| River Falls to Moguer | 4,287.45 mi (6,899.98 km) |
| River Falls to Molina de Segura | 4,497.86 mi (7,238.61 km) |
| River Falls to Molins de Rey | 4,486.76 mi (7,220.75 km) |
| River Falls to Mollerusa | 4,432.05 mi (7,132.69 km) |
| River Falls to Mollet | 4,489.36 mi (7,224.93 km) |
| River Falls to Moncada | 4,490.56 mi (7,226.86 km) |
| River Falls to Moncada | 4,468.16 mi (7,190.81 km) |
| River Falls to Monforte de Lemos | 4,047.75 mi (6,514.22 km) |
| River Falls to Monforte del Cid | 4,504.32 mi (7,249.01 km) |
| River Falls to Mongat | 4,495.10 mi (7,234.17 km) |
| River Falls to Monovar | 4,497.27 mi (7,237.66 km) |
| River Falls to Monserrat | 4,467.55 mi (7,189.83 km) |
