| Piedras Blancas to River Ridge (Louisiana) | 4,558.60 mi (7,336.35 km) |
| Piedras Blancas to Riverbank (California) | 5,503.01 mi (8,856.25 km) |
| Piedras Blancas to Riverdale (Georgia) | 4,136.22 mi (6,656.60 km) |
| Piedras Blancas to Riverdale (Illinois) | 3,976.81 mi (6,400.06 km) |
| Piedras Blancas to Riverside (California) | 5,561.48 mi (8,950.33 km) |
| Piedras Blancas to Riverside (Ohio) | 3,887.55 mi (6,256.41 km) |
| Piedras Blancas to Riverton (Utah) | 5,028.89 mi (8,093.21 km) |
| Piedras Blancas to Riverton (Wyoming) | 4,776.33 mi (7,686.75 km) |
| Piedras Blancas to Riverview (Florida) | 4,267.35 mi (6,867.63 km) |
| Piedras Blancas to Riverview (Michigan) | 3,761.90 mi (6,054.20 km) |
| Piedras Blancas to Riviera Beach (Florida) | 4,201.34 mi (6,761.41 km) |
| Piedras Blancas to Riviera Beach (Maryland) | 3,559.47 mi (5,728.41 km) |
| Piedras Blancas to Roanoke (Virginia) | 3,786.00 mi (6,092.98 km) |
| Piedras Blancas to Roanoke Rapids (North Carolina) | 3,707.10 mi (5,966.00 km) |
| Piedras Blancas to Robbinsdale (Minnesota) | 4,094.60 mi (6,589.62 km) |
