| Castle Rock to Grand Prairie (Texas) | 635.99 mi (1,023.53 km) |
| Castle Rock to Grand Rapids (Michigan) | 1,026.26 mi (1,651.60 km) |
| Castle Rock to Grand Rapids (Minnesota) | 785.29 mi (1,263.79 km) |
| Castle Rock to Grand Terrace (California) | 781.78 mi (1,258.15 km) |
| Castle Rock to Grandview (Missouri) | 554.47 mi (892.33 km) |
| Castle Rock to Grandview (Washington) | 896.39 mi (1,442.59 km) |
| Castle Rock to Grandville (Michigan) | 1,020.68 mi (1,642.63 km) |
| Castle Rock to Granger (Indiana) | 994.02 mi (1,599.73 km) |
| Castle Rock to Granite Bay (California) | 875.20 mi (1,408.49 km) |
| Castle Rock to Granite City (Illinois) | 790.55 mi (1,272.27 km) |
| Castle Rock to Grants Pass (Oregon) | 985.66 mi (1,586.27 km) |
| Castle Rock to Grantsville (Utah) | 412.39 mi (663.68 km) |
| Castle Rock to Grapevine (Texas) | 621.16 mi (999.66 km) |
| Castle Rock to Grass Valley (California) | 865.00 mi (1,392.08 km) |
| Castle Rock to Grayslake (Illinois) | 900.87 mi (1,449.80 km) |
