Ключевые слова: abstract, background, beautiful, beauty, blue, boardwalks, color, colorful, famous, geothermal, geyser, grand prismatic spring, green, heat, hot spring, landmark, mammoth, midway geyser basin, mineral, natural, park, people, pool, rainbow colors, scenic, spring, springs, thermal, tourism, tourist, travel, usa, view, volcanic, volcano, water, wild, wyoming, yellowstone, yellowstone national park,