I could use some help with an itinerary for our Yellowstone 2014 road trip. We will be leaving Chicago area and want to site see on the way to Yellowstone and home. Which routes would be best? Mt Rushmore, Badlands and anywhere else would be good. We will have 16 days total and want to spend at least 7 days in Yellowstone and Jackson Hole. Traveling with 14 and 7 year old boys in August.