| Castle Rock to Livermore (California) | 919.87 mi (1,480.39 km) |
| Castle Rock to Livingston (California) | 869.35 mi (1,399.09 km) |
| Castle Rock to Livonia (Michigan) | 1,138.06 mi (1,831.53 km) |
| Castle Rock to Lochearn (Maryland) | 1,496.19 mi (2,407.88 km) |
| Castle Rock to Lockhart (Florida) | 1,526.59 mi (2,456.81 km) |
| Castle Rock to Lockhart (Texas) | 771.91 mi (1,242.26 km) |
| Castle Rock to Lockport (Illinois) | 895.79 mi (1,441.63 km) |
| Castle Rock to Lockport (New York) | 1,377.50 mi (2,216.87 km) |
| Castle Rock to Lodi (California) | 888.85 mi (1,430.47 km) |
| Castle Rock to Lodi (New Jersey) | 1,620.62 mi (2,608.13 km) |
| Castle Rock to Logan (Utah) | 401.40 mi (646.00 km) |
| Castle Rock to Logansport (Indiana) | 981.11 mi (1,578.94 km) |
| Castle Rock to Loganville (Georgia) | 1,220.49 mi (1,964.19 km) |
| Castle Rock to Loma Linda (California) | 778.19 mi (1,252.37 km) |
| Castle Rock to Lombard (Illinois) | 898.15 mi (1,445.43 km) |
