Ключевые слова: adventure, algae, america, bacteria, basin, blue, caldera, castle, castle geyser, coast, coastline, colorful, exploration, extremophile, feature, forest, formation, fumes, geology, geothermal, geyser, geyser basin, landscape, limestone, national parks, natural, nature, orange, pines, red, reflection, rock, sightseeing, sinter, sky, smoke, smoking, steam, steaming, stone, the west, thermal, thermophiles, thermophilic, travel, travertine, trees, untamed, usa, vapor, volcanic, volcano, water, white, wilderness, wonder, woods, wyoming, yellowstone, yellowstone national park,