Day four was a long day. 20 hours on the road but only 10 hours of it driving. We stopped and spent time in The Bad Lands, Wall Drug, Crazy Horse, and Mt. Rushmore. We all had a really great time. I wish we could have spent more time at each place but it was a lot to pack in to one day! We arrived at Jess's house in Billings, MT at 2:00 in the morning, exhausted, but excited to be there.