Ключевые слова: attraction, bacteria, beauty, blue, blue sky, clouds, colorful, colour image, forest, geology, geothermal, geyser, glory, grass, hills, horizontal, hot, landscape, mist, montana, morning, national, nature, no one, outdoor, park, pine tree, pool, sediments, sizzling, sizzling water, smoke, spring, starlight, steam, sulfur, sulphur, summer, sunlight, tourism destination, trees, united states of america, usa, volcanic, water, waterhole, wyoming, yellowstone, yellowstone national park,