No camping
One place would be Black River Campground on Lake Superior. Another good spot on the eastern side would be Pictured Rocks National Park. Both areas have campgrounds and a variety of waterfalls.
This is a roadside Park so it's not really available for camping. You might want to consider 12 foot falls park in Marinette County there are two waterfalls actually there and several others within very short drives of there and they allow camping there
Thanks! Your answer is awaiting moderation.