Ключевые слова: algae, alkaline, america, background, bacteria, basin, beautiful, blue, bronze, chromatic, color, colorful, destination, ecology, famous, geo, geology, geothermal, geyser, glory, heat, hot, landmark, microbial, morning, national, natural, nature, orange, outdoor, panorama, park, pool, river, scene, scenic, sky, spring, thermal, travel, upper, usa, vacation, volcanic, water, white, wy, wyoming, yellow, yellowstone,