| River Ridge to Montgomeryville (Pennsylvania) | 1,102.89 mi (1,774.93 km) |
| River Ridge to Monticello (Minnesota) | 1,077.52 mi (1,734.11 km) |
| River Ridge to Montrose (Colorado) | 1,163.77 mi (1,872.91 km) |
| River Ridge to Moody (Alabama) | 333.21 mi (536.25 km) |
| River Ridge to Moore (Oklahoma) | 561.68 mi (903.94 km) |
| River Ridge to Moorestown-Lenola (New Jersey) | 1,103.68 mi (1,776.20 km) |
| River Ridge to Mooresville (North Carolina) | 669.45 mi (1,077.37 km) |
| River Ridge to Moorhead (Minnesota) | 1,219.39 mi (1,962.41 km) |
| River Ridge to Moorpark (California) | 1,697.50 mi (2,731.86 km) |
| River Ridge to Moraga (California) | 1,898.42 mi (3,055.21 km) |
| River Ridge to Moreno Valley (California) | 1,600.90 mi (2,576.41 km) |
| River Ridge to Morgan City (Louisiana) | 60.86 mi (97.94 km) |
| River Ridge to Morgan Hill (California) | 1,866.60 mi (3,004.01 km) |
| River Ridge to Morganton (North Carolina) | 635.25 mi (1,022.34 km) |
| River Ridge to Morgantown (West Virginia) | 885.85 mi (1,425.63 km) |
