| Castle Rock to Garfield Heights (Ohio) | 1,227.75 mi (1,975.88 km) |
| Castle Rock to Garland (Texas) | 639.86 mi (1,029.75 km) |
| Castle Rock to Garner (North Carolina) | 1,454.45 mi (2,340.72 km) |
| Castle Rock to Gary (Indiana) | 930.94 mi (1,498.21 km) |
| Castle Rock to Gastonia (North Carolina) | 1,327.40 mi (2,136.25 km) |
| Castle Rock to Gatesville (Texas) | 678.57 mi (1,092.06 km) |
| Castle Rock to Gateway (Florida) | 1,597.37 mi (2,570.72 km) |
| Castle Rock to Gautier (Mississippi) | 1,104.62 mi (1,777.71 km) |
| Castle Rock to Geneva (Illinois) | 882.42 mi (1,420.11 km) |
| Castle Rock to Geneva (New York) | 1,463.66 mi (2,355.53 km) |
| Castle Rock to Georgetown (Georgia) | 1,415.78 mi (2,278.48 km) |
| Castle Rock to Georgetown (Kentucky) | 1,093.93 mi (1,760.50 km) |
| Castle Rock to Georgetown (Texas) | 724.80 mi (1,166.45 km) |
| Castle Rock to Germantown (Maryland) | 1,469.90 mi (2,365.58 km) |
| Castle Rock to Germantown (Tennessee) | 879.25 mi (1,415.02 km) |
