After landing in Anchorage we rented a car. It was late in the evening as we started driving north on Highway 3 towards the true wilderness of Denali National Park. We saw the sunset at about 11:00 pm and slept in a hotel in the town of Trapper Creek. It was early Sunday morning when we drove on Petersville Road. Visibility was impeccable. We stopped on the road and took a short walk on the tundra. The view was magnificent because...