| Castle Rock to Spout Springs (North Carolina) | 1,441.54 mi (2,319.93 km) |
| Castle Rock to Spring (Texas) | 837.70 mi (1,348.14 km) |
| Castle Rock to Spring Creek (Nevada) | 575.63 mi (926.39 km) |
| Castle Rock to Spring Hill (Florida) | 1,478.68 mi (2,379.71 km) |
| Castle Rock to Spring Hill (Tennessee) | 1,012.35 mi (1,629.22 km) |
| Castle Rock to Spring Lake (North Carolina) | 1,445.50 mi (2,326.31 km) |
| Castle Rock to Spring Valley (California) | 816.96 mi (1,314.77 km) |
| Castle Rock to Spring Valley (Nevada) | 611.86 mi (984.70 km) |
| Castle Rock to Spring Valley (New York) | 1,620.54 mi (2,608.01 km) |
| Castle Rock to Springboro (Ohio) | 1,097.42 mi (1,766.12 km) |
| Castle Rock to Springdale (Arkansas) | 623.69 mi (1,003.74 km) |
| Castle Rock to Springdale (New Jersey) | 1,583.10 mi (2,547.75 km) |
| Castle Rock to Springdale (Ohio) | 1,086.70 mi (1,748.87 km) |
| Castle Rock to Springfield (Illinois) | 808.98 mi (1,301.92 km) |
| Castle Rock to Springfield (Massachusetts) | 1,691.89 mi (2,722.84 km) |
