And the more I have looked at it, the less interesting both because virtually within site of the parallel interstate most of the way, and because the museum at the Kearney arch is closed through February.
Still toying with my friend's idea (absent blizzards

) to do a badlands trip (and remembering that we are view-from-the-moving-car trippers), my first attempt at a route is
HERE.
The first and last nights (B &F) have Holiday Inn Express Points Breaks hotels. D isn't actually an overnight, just a destination on a drive from Winner to Valentine. Only sketchy part is that Winner and Valentine may have only, uh, adventurous motel properties.