Ключевые слова: active, america, area, back, back basin, back basin area, barren, basin, blue, boiling, burst, caldera, colorful, ecosystem, environment, erupt, erupting, eruption, explode, feature, features, geothermal, geyser, geyser erupting, green, hike, hiking, hot, hot spring, hydrothermal, mineral, montana, national, national park, nature, norris, norris geyser basin, outdoors, park, pine, steam, thermal, united states, usa, vixen, volcanic, volcano, water, wyoming, yellowstone,