| Castle Rock to Largo (Florida) | 1,490.77 mi (2,399.16 km) |
| Castle Rock to Largo (Maryland) | 1,496.40 mi (2,408.23 km) |
| Castle Rock to Larkspur (California) | 957.39 mi (1,540.78 km) |
| Castle Rock to Las Cruces (New Mexico) | 498.97 mi (803.02 km) |
| Castle Rock to Las Vegas (Nevada) | 608.00 mi (978.49 km) |
| Castle Rock to Las Vegas (New Mexico) | 261.62 mi (421.03 km) |
| Castle Rock to Latham (New York) | 1,627.67 mi (2,619.49 km) |
| Castle Rock to Lathrop (California) | 894.18 mi (1,439.04 km) |
| Castle Rock to Lauderdale Lakes (Florida) | 1,689.39 mi (2,718.82 km) |
| Castle Rock to Lauderhill (Florida) | 1,688.65 mi (2,717.61 km) |
| Castle Rock to Laurel (Florida) | 1,538.56 mi (2,476.08 km) |
| Castle Rock to Laurel (Maryland) | 1,492.08 mi (2,401.26 km) |
| Castle Rock to Laurel (Mississippi) | 1,028.14 mi (1,654.63 km) |
| Castle Rock to Laurel (Virginia) | 1,477.82 mi (2,378.33 km) |
| Castle Rock to Laurinburg (North Carolina) | 1,429.80 mi (2,301.04 km) |
