This list of inexpensive must sees goes in order of our trip starting in South Dakota. 2. Custer State Park- Custer, South Dakota $20 for a 7 day pass, 71,000 acre park full of scenic drives and lots of wildlife, including donkeys that walk right up to your car! 3. Cody, Wyoming- Very cool Old … Continue reading 11 Cheap, Must Sees on a Western US RV Trip!