| Keystone to Red Bank (New Jersey) | 973.52 mi (1,566.73 km) |
| Keystone to Red Bank (Tennessee) | 507.66 mi (817.00 km) |
| Keystone to Red Bluff (California) | 2,391.25 mi (3,848.34 km) |
| Keystone to Red Hill (South Carolina) | 444.23 mi (714.93 km) |
| Keystone to Red Oak (Texas) | 897.89 mi (1,445.01 km) |
| Keystone to Red Wing (Minnesota) | 1,263.27 mi (2,033.04 km) |
| Keystone to Redan (Georgia) | 398.41 mi (641.18 km) |
| Keystone to Redding (California) | 2,401.55 mi (3,864.93 km) |
| Keystone to Redland (Maryland) | 821.96 mi (1,322.82 km) |
| Keystone to Redlands (California) | 2,075.79 mi (3,340.67 km) |
| Keystone to Redmond (Oregon) | 2,393.11 mi (3,851.34 km) |
| Keystone to Redmond (Washington) | 2,503.18 mi (4,028.48 km) |
| Keystone to Redondo Beach (California) | 2,144.55 mi (3,451.32 km) |
| Keystone to Redwood City (California) | 2,371.26 mi (3,816.18 km) |
| Keystone to Reedley (California) | 2,213.81 mi (3,562.79 km) |
