| River Grove to Ridgefield Park (New Jersey) | 719.28 mi (1,157.56 km) |
| River Grove to Ridgeland (Mississippi) | 668.57 mi (1,075.95 km) |
| River Grove to Ridgewood (New Jersey) | 712.97 mi (1,147.41 km) |
| River Grove to Rifle (Colorado) | 1,054.25 mi (1,696.66 km) |
| River Grove to Rincon (Georgia) | 757.72 mi (1,219.43 km) |
| River Grove to Ringwood (New Jersey) | 703.22 mi (1,131.72 km) |
| River Grove to Río Grande (Puerto Rico) | 2,078.27 mi (3,344.64 km) |
| River Grove to Rio Grande City (Texas) | 1,241.62 mi (1,998.19 km) |
| River Grove to Rio Linda (California) | 1,773.20 mi (2,853.70 km) |
| River Grove to Rio Rancho (New Mexico) | 1,113.66 mi (1,792.27 km) |
| River Grove to Rio Rico (Arizona) | 1,464.00 mi (2,356.09 km) |
| River Grove to Ripon (California) | 1,778.49 mi (2,862.20 km) |
| River Grove to River Edge (New Jersey) | 717.43 mi (1,154.59 km) |
| River Grove to River Falls (Wisconsin) | 314.43 mi (506.03 km) |
| River Grove to River Forest (Illinois) | 2.24 mi (3.60 km) |
