| Castle Rock to Land O' Lakes (Florida) | 1,493.94 mi (2,404.26 km) |
| Castle Rock to Landover (Maryland) | 1,492.77 mi (2,402.37 km) |
| Castle Rock to Langley Park (Maryland) | 1,487.04 mi (2,393.16 km) |
| Castle Rock to Lanham (Maryland) | 1,494.71 mi (2,405.50 km) |
| Castle Rock to Lansdale (Pennsylvania) | 1,563.44 mi (2,516.12 km) |
| Castle Rock to Lansdowne (Pennsylvania) | 1,566.54 mi (2,521.10 km) |
| Castle Rock to Lansdowne (Virginia) | 1,459.32 mi (2,348.55 km) |
| Castle Rock to Lansing (Illinois) | 920.57 mi (1,481.51 km) |
| Castle Rock to Lansing (Kansas) | 532.07 mi (856.29 km) |
| Castle Rock to Lansing (Michigan) | 1,079.51 mi (1,737.31 km) |
| Castle Rock to Lantana (Florida) | 1,678.61 mi (2,701.47 km) |
| Castle Rock to Lantana (Texas) | 611.23 mi (983.68 km) |
| Castle Rock to Laplace (Louisiana) | 1,036.86 mi (1,668.67 km) |
| Castle Rock to Laramie (Wyoming) | 139.39 mi (224.32 km) |
| Castle Rock to Laredo (Texas) | 872.42 mi (1,404.03 km) |
