To explain the choice of destination, we'll have to go back 2 years while I was scouring the internet for cool places to visit. A web search returned a description of "Our Lady of the Rockies" in Butte, Montana that left me envious. Envious of my future self who would one day visit her. We decided to visit the Lady and make a trip of it, by visiting Glacier National Park (also in Montana) thereafter.
We arrived in Butte late in the evening, and decided to park ourselves next to the freeway and pitch our tent for a night of restful and safe sleep. We thought parking next to the freeway would help keep us safe from any creeps lurking the countryside.