x3 on the Rushmore KOA. Been there twice--they added a ton of stuff between our two visits.
There is even a lodge there if you have people visiting who don't camp (on our 2nd trip some of our party stayed in the lodge).
Mount Rushmore Resort at Palmer Gulch | Mount Rushmore KOA | Palmer Gulch Lodge Palmer Gulch
Note: It is not the place to go if you are looking for rustic!
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