Devils Tower Trading Post
At the entrance to Devils Tower National Monument, you can purchase informative books, Western art, buffalo hides, clothing, knickknacks, and souvenirs. A giant Harley-Davidson flag (supposedly the world's largest) flies over the store, so it's no wonder that bikers overrun the place during the massive Sturgis Motorcycle Rally in August. The old-fashioned ice-cream parlor, which also serves a mean sarsaparilla, is a treat in the heat of summer.