| Keystone to River Ridge (Louisiana) | 477.20 mi (767.98 km) |
| Keystone to Riverbank (California) | 2,302.57 mi (3,705.63 km) |
| Keystone to Riverdale (Georgia) | 390.40 mi (628.29 km) |
| Keystone to Riverdale (Illinois) | 975.83 mi (1,570.44 km) |
| Keystone to Riverside (California) | 2,088.38 mi (3,360.92 km) |
| Keystone to Riverside (Ohio) | 809.77 mi (1,303.20 km) |
| Keystone to Riverton (Utah) | 1,869.12 mi (3,008.06 km) |
| Keystone to Riverton (Wyoming) | 1,767.16 mi (2,843.97 km) |
| Keystone to Riverview (Florida) | 28.00 mi (45.06 km) |
| Keystone to Riverview (Michigan) | 970.72 mi (1,562.22 km) |
| Keystone to Riviera Beach (Florida) | 180.77 mi (290.92 km) |
| Keystone to Riviera Beach (Maryland) | 837.89 mi (1,348.45 km) |
| Keystone to Roanoke (Virginia) | 650.33 mi (1,046.60 km) |
| Keystone to Roanoke Rapids (North Carolina) | 642.86 mi (1,034.59 km) |
| Keystone to Robbinsdale (Minnesota) | 1,307.70 mi (2,104.54 km) |
