| Castle Rock to Fort Meade (Maryland) | 1,498.21 mi (2,411.13 km) |
| Castle Rock to Fort Mill (South Carolina) | 1,346.19 mi (2,166.48 km) |
| Castle Rock to Fort Mohave (Arizona) | 614.09 mi (988.28 km) |
| Castle Rock to Fort Morgan (Colorado) | 82.82 mi (133.28 km) |
| Castle Rock to Fort Myers (Florida) | 1,591.52 mi (2,561.31 km) |
| Castle Rock to Fort Oglethorpe (Georgia) | 1,120.00 mi (1,802.47 km) |
| Castle Rock to Fort Payne (Alabama) | 1,108.98 mi (1,784.73 km) |
| Castle Rock to Fort Pierce (Florida) | 1,629.28 mi (2,622.07 km) |
| Castle Rock to Fort Smith (Arkansas) | 638.88 mi (1,028.18 km) |
| Castle Rock to Fort Thomas (Kentucky) | 1,089.80 mi (1,753.87 km) |
| Castle Rock to Fort Walton Beach (Florida) | 1,200.60 mi (1,932.19 km) |
| Castle Rock to Fort Washington (Maryland) | 1,488.80 mi (2,395.99 km) |
| Castle Rock to Fort Wayne (Indiana) | 1,044.11 mi (1,680.33 km) |
| Castle Rock to Fort Worth (Texas) | 618.63 mi (995.60 km) |
| Castle Rock to Fortuna (California) | 1,022.55 mi (1,645.63 km) |
