Ключевые слова: active, area, autumn, boiling, clouds, colorful, daytime, dome, drive, eruption, feature, format, geological, geology, geothermal, geyser, ground, horizontal, hot, landmark, landscape, lone, national, nature, old, outdoor, park, pressure, rock, scenic, sky, steam, thermal, travel, usa, water, white, wilderness, wyoming, yellowstone,