| Green River to Portage (Michigan) | 1,225.84 mi (1,972.79 km) |
| Green River to Portage (Wisconsin) | 1,025.71 mi (1,650.72 km) |
| Green River to Portales (New Mexico) | 606.50 mi (976.06 km) |
| Green River to Porterville (California) | 637.28 mi (1,025.60 km) |
| Green River to Portland (Maine) | 1,980.83 mi (3,187.84 km) |
| Green River to Portland (Oregon) | 715.30 mi (1,151.17 km) |
| Green River to Portland (Tennessee) | 1,273.06 mi (2,048.79 km) |
| Green River to Portland (Texas) | 1,164.08 mi (1,873.41 km) |
| Green River to Portsmouth (New Hampshire) | 1,962.88 mi (3,158.95 km) |
| Green River to Portsmouth (Ohio) | 1,408.54 mi (2,266.82 km) |
| Green River to Portsmouth (Virginia) | 1,791.44 mi (2,883.05 km) |
| Green River to Post Falls (Idaho) | 564.17 mi (907.94 km) |
| Green River to Potomac (Maryland) | 1,700.55 mi (2,736.77 km) |
| Green River to Potomac Park (California) | 665.99 mi (1,071.81 km) |
| Green River to Pottstown (Pennsylvania) | 1,757.91 mi (2,829.08 km) |
