| Keystone to St. George (Utah) | 1,895.87 mi (3,051.11 km) |
| Keystone to St. Helens (Oregon) | 2,498.64 mi (4,021.18 km) |
| Keystone to St. James (New York) | 1,030.40 mi (1,658.26 km) |
| Keystone to St. John (Indiana) | 959.92 mi (1,544.84 km) |
| Keystone to St. Joseph (Missouri) | 1,063.79 mi (1,712.01 km) |
| Keystone to St. Louis (Missouri) | 848.53 mi (1,365.57 km) |
| Keystone to St. Louis Park (Minnesota) | 1,303.89 mi (2,098.40 km) |
| Keystone to St. Marys (Georgia) | 191.65 mi (308.43 km) |
| Keystone to St. Marys (Pennsylvania) | 948.90 mi (1,527.10 km) |
| Keystone to St. Matthews (Kentucky) | 720.73 mi (1,159.90 km) |
| Keystone to St. Michael (Minnesota) | 1,327.05 mi (2,135.69 km) |
| Keystone to St. Paul (Minnesota) | 1,297.39 mi (2,087.95 km) |
| Keystone to St. Peter (Minnesota) | 1,283.12 mi (2,064.99 km) |
| Keystone to St. Peters (Missouri) | 867.80 mi (1,396.58 km) |
| Keystone to St. Petersburg (Florida) | 23.70 mi (38.14 km) |
