

Rapid City, South Dakota
The campground where we spend the night is right off of Exit 131 of I90 which is the exit that leads to Badlands NP heading south on 240. On the other side of the highway heading north is the Minuteman II Missile National Historic visitor center and museum. It is one of many sites you can visit along I90.
The museum contains information about missiles and satellites. A short drive up the road is D-1 site where you can tour a missile silo, I knew the tour require...