puff n stuff geyser at norris geyser basin trail area, during winter in yellowstone national park, wyoming

puff stuff geyser norris basin trail area winter yellowstone national park wyoming attraction back bacteria caldera crackling cyanidium destination emerald spring famous geology geothermal grand green hot hydrothermal lake landmark landscape microorganisms mineral mist multicolored nature outdoor scenery scenic steam thermal tourism travel usa volcanic volcano water wilderness