I arrived at Craters of the Moon National Monument early the next morning, a Sunday, after having slept in my car at a rest area. Craters of the Moon is about 15 miles southwest of Arco, Idaho and would be the furthest west I would make it on this trip.
In what was really the only time I missed something, I arrived about 7 in the morning to find the campground full. Looking around, I saw that there had been a Star Party the previous two nights. I don't regret the time I spent at Two Medicine, but I think if I'd known this was going on, I'd have left earlier or pushed on the night before. By 9am, the campground was nearly empty.