| River Grove to River Ridge (Louisiana) | 837.27 mi (1,347.46 km) |
| River Grove to Riverbank (California) | 1,769.21 mi (2,847.27 km) |
| River Grove to Riverdale (Georgia) | 607.10 mi (977.03 km) |
| River Grove to Riverdale (Illinois) | 21.96 mi (35.35 km) |
| River Grove to Riverside (California) | 1,692.68 mi (2,724.10 km) |
| River Grove to Riverside (Ohio) | 244.08 mi (392.80 km) |
| River Grove to Riverton (Utah) | 1,253.43 mi (2,017.20 km) |
| River Grove to Riverton (Wyoming) | 1,048.67 mi (1,687.67 km) |
| River Grove to Riverview (Florida) | 1,023.00 mi (1,646.35 km) |
| River Grove to Riverview (Michigan) | 238.82 mi (384.35 km) |
| River Grove to Riviera Beach (Florida) | 1,134.89 mi (1,826.43 km) |
| River Grove to Riviera Beach (Maryland) | 623.29 mi (1,003.09 km) |
| River Grove to Roanoke (Virginia) | 527.83 mi (849.46 km) |
| River Grove to Roanoke Rapids (North Carolina) | 663.38 mi (1,067.61 km) |
| River Grove to Robbinsdale (Minnesota) | 348.93 mi (561.55 km) |
