My wife and I spent four days at Yellowstone National Park during its busiest season. Friends and travel blogs warned us not to visit in the summer, but we found it to be pretty great.Ash JurbergMy wife and I expected our trip to Yellowstone National Park during peak summer season to be rough.We encountered some crowds, but the park felt peaceful in the early mornings and evenings.Much to our surprise, we got great last-minute accomodations and …