Miles between Rapid City, SD and Castle Rock, CO

There are
436 mi
from Rapid City, SD to Castle Rock, CO

That's the driving distance. It would take 7 hours 49 mins to go from Rapid City, South Dakota to Castle Rock, Colorado.

The flight distance (direct flight from Rapid City, SD to Castle Rock, CO) is 335.91 mi.

436 mi = 701.08 kms