| Keystone to Ridgeland (Mississippi) | 539.02 mi (867.47 km) |
| Keystone to Ridgewood (New Jersey) | 1,009.51 mi (1,624.65 km) |
| Keystone to Rifle (Colorado) | 1,637.52 mi (2,635.34 km) |
| Keystone to Rincon (Georgia) | 298.98 mi (481.16 km) |
| Keystone to Ringwood (New Jersey) | 1,012.59 mi (1,629.60 km) |
| Keystone to Río Grande (Puerto Rico) | 1,257.21 mi (2,023.29 km) |
| Keystone to Rio Grande City (Texas) | 1,002.91 mi (1,614.02 km) |
| Keystone to Rio Linda (California) | 2,336.20 mi (3,759.75 km) |
| Keystone to Rio Rancho (New Mexico) | 1,495.67 mi (2,407.05 km) |
| Keystone to Rio Rico (Arizona) | 1,712.84 mi (2,756.55 km) |
| Keystone to Ripon (California) | 2,312.88 mi (3,722.23 km) |
| Keystone to River Edge (New Jersey) | 1,008.25 mi (1,622.62 km) |
| Keystone to River Falls (Wisconsin) | 1,280.64 mi (2,060.99 km) |
| Keystone to River Forest (Illinois) | 995.27 mi (1,601.73 km) |
| Keystone to River Grove (Illinois) | 997.49 mi (1,605.30 km) |
