Yellowstone is the oldest national park in the United States where you will find a multitude of wildlife including grizzly bears, gray wolves and bison. I especially enjoy photographing Yellowstone in the winter because it's a magical place filled with abundant wildlife and a spellbinding landscape complete with lovely streams, spewing geysers, frequent earthquakes, and a great deal of thermal activity. The Tetons are a picture paradise in the fall, especially around the Oxbow Bend area.