Ключевые слова: america, basin, caldera, erupt, erupting, eruption, forest, geology, geothermal, geyser, hydrothermal, landscape, national, national park, natural, nature, pool, rainbow, river, riverside, riverside geyser, scenic, sky, spring, steam, summer, thermal, tourism, travel, upper geyser basin, usa, vacation, view, volcanic, volcano, water, wyoming, yellowstone national park,