| Canals to Rosemont (California) | 5,898.48 mi (9,492.69 km) |
| Canals to Rosemount (Minnesota) | 4,507.96 mi (7,254.87 km) |
| Canals to Rosenberg (Texas) | 5,224.97 mi (8,408.77 km) |
| Canals to Roseville (California) | 5,885.78 mi (9,472.25 km) |
| Canals to Roseville (Michigan) | 4,140.32 mi (6,663.20 km) |
| Canals to Roseville (Minnesota) | 4,502.05 mi (7,245.35 km) |
| Canals to Rossmoor (California) | 6,015.07 mi (9,680.31 km) |
| Canals to Rossville (Maryland) | 3,935.18 mi (6,333.07 km) |
| Canals to Roswell (Georgia) | 4,494.04 mi (7,232.46 km) |
| Canals to Roswell (New Mexico) | 5,464.02 mi (8,793.49 km) |
| Canals to Round Lake (Illinois) | 4,377.69 mi (7,045.21 km) |
| Canals to Round Lake Beach (Illinois) | 4,375.37 mi (7,041.48 km) |
| Canals to Round Rock (Texas) | 5,271.79 mi (8,484.12 km) |
| Canals to Rowland Heights (California) | 5,998.44 mi (9,653.55 km) |
| Canals to Rowlett (Texas) | 5,120.20 mi (8,240.17 km) |
