| River Grove to Portage (Indiana) | 41.21 mi (66.33 km) |
| River Grove to Portage (Michigan) | 116.84 mi (188.03 km) |
| River Grove to Portage (Wisconsin) | 139.37 mi (224.29 km) |
| River Grove to Portales (New Mexico) | 997.41 mi (1,605.18 km) |
| River Grove to Porterville (California) | 1,713.24 mi (2,757.19 km) |
| River Grove to Portland (Maine) | 897.00 mi (1,443.59 km) |
| River Grove to Portland (Oregon) | 1,741.95 mi (2,803.39 km) |
| River Grove to Portland (Tennessee) | 375.05 mi (603.59 km) |
| River Grove to Portland (Texas) | 1,106.82 mi (1,781.25 km) |
| River Grove to Portsmouth (New Hampshire) | 870.95 mi (1,401.65 km) |
| River Grove to Portsmouth (Ohio) | 338.13 mi (544.17 km) |
| River Grove to Portsmouth (Virginia) | 705.63 mi (1,135.60 km) |
| River Grove to Post Falls (Idaho) | 1,471.57 mi (2,368.26 km) |
| River Grove to Potomac (Maryland) | 594.00 mi (955.95 km) |
| River Grove to Potomac Park (California) | 1,729.34 mi (2,783.11 km) |
