I'm planning a trip from Mpls to Yellowstone and back again, the week prior to Labor Day. We've planned stops in the Badlands, Black Hills, Yellowstone, Grand Tetons, Estes Park and Cheyenne. Any advice regarding these stops? Would you advise any additional stops? Where? Has anyone been to Idaho Falls or Salt Lake City? Would it be worth widening our loop to include these areas? Any advice would be appreciated. Thanks!!