| Keystone to Salisbury (New York) | 1,011.03 mi (1,627.09 km) |
| Keystone to Salisbury (North Carolina) | 535.05 mi (861.08 km) |
| Keystone to Salmon Creek (Washington) | 2,488.85 mi (4,005.42 km) |
| Keystone to Salt Lake City (Utah) | 1,873.15 mi (3,014.54 km) |
| Keystone to Sammamish (Washington) | 2,498.23 mi (4,020.52 km) |
| Keystone to San Angelo (Texas) | 1,093.23 mi (1,759.39 km) |
| Keystone to San Anselmo (California) | 2,392.49 mi (3,850.34 km) |
| Keystone to San Antonio (Texas) | 967.79 mi (1,557.51 km) |
| Keystone to San Benito (Texas) | 934.72 mi (1,504.29 km) |
| Keystone to San Bernardino (California) | 2,083.04 mi (3,352.32 km) |
| Keystone to San Bruno (California) | 2,383.11 mi (3,835.25 km) |
| Keystone to San Buenaventura (California) | 2,193.92 mi (3,530.77 km) |
| Keystone to San Carlos (California) | 2,373.56 mi (3,819.87 km) |
| Keystone to San Carlos Park (Florida) | 123.97 mi (199.50 km) |
| Keystone to San Clemente (California) | 2,100.15 mi (3,379.87 km) |
