My wife and I are planning a trip of the NPs in July. We'll be visiting Galcier, Yellowstone and Grand Teton and Jackson. We plan to stay in Cody, WY on our trip East to Devils Tower, Mt Rushmore, etc. I'd like to know which would be the best route, either through Sheridan or through Buffalo. We'll probably be spending the night so I'm interested in accommodations, attractions and dining. Also my wife is a little skitterish about heights so I'd also be interested in knowing which would be the better route for her over the Big Horn Mountains? Thank you.