After the Badlands, we ventured farther west to the Black Hills. We visited Wind Cave, home to the 6th longest cave in the world, but other than that, was not super interesting. AJ did really great considering I had to front-carry her in the ergo. By the end, she was actually asleep. The coolest thing about the cave was the air flow dynamics at the natural opening.
We did the 3 scenic drives around the Custer State Park area - all very beautiful, but not very birdy. We stayed at a campground near Custer and visited the 2 playgrounds in town at least once a day. AJ sure did love the new playground equipment she encountered.
Our last full day, we visited Mt Rushmore. It was July 3rd and there were lots of holiday activities, but we got there early to avoid the crowds and missed the activities. AJ loves the stadium seating and kept walking across the benches. Trying to get pictures did not go well! It was really neat to experience as an adult.