Instead of sticking to I-90, we took the scenic-slower route through the badlands. The badlands are rough. They are pretty to look at, but must have been hell to cross on foot. Being in a car on a paved road changes your perspective. They often have snake warning signs like the one below. I have only seen a rattlesnake one time in all the years I have walked in places with signs like this. Maybe they just put them there to spice up the experience.
You can see from the picture below that they even made a boardwalk along the hill. Again, your perspective is different when you can walk in comfort. The poor pioneers having to live here would have seen it differently.