Days Of '76 Museum and R V Park, SD. - photo taken of part of the museum buildings THIS IS A MUST SEE, great museum with early American artifacts, coaches, cowboy artifacts, early native costumes, antique guns. This site also boasts a R. V. campground with full hookups. Walking distance to downtown. The Canam Highway - Wyoming / South Dakota State Line to the North Dakota / South Dakota State Line Black Hills National Forest stretches for 1.2 million acres, offering outdoor adventure like hiking, biking and camping amidst stunning scenery. Find grassy mountain meadows, towering granite peaks, deep canyons, cascading trout streams and clear, clean lakes.