Another shot from the Norris Geysers area of Yellowstone National Park. I was struck by the contrast of snow covered trees surrounded by streams of boiling water. It is an unearthly and mystical place to explore, especially on a cold morning. You go from bitter cold to sweating in the heat as you go past the geysers, vents, and pools of boiling water. The smell of sulfur is in the air and you can hear the hissing and roaring of the steam coming from the ground.