My wife and I are planning a trip to Mt. Rushmore in June. I have allotted 2 1/2 days to travel from Houston TX. What we are not sure is how long we should stay. I have 4 days penciled in but would like to hear from others that have made the trip. I would like to park the trailer and drive to the attractions and spend some relaxing at the campground. Any suggestions on RV parks, attractions and length of stay would be greatly appreciated.