Ключевые слова: bear, bison, black and white, caldera, cloudscape, cloudy, ecosystem, elk, eruption, famous, features, forest, geothermal, geyser, grizzly, hike, hiking, hot, hot spring, hydrothermal, idaho, landmark, montana, mount, mountain, national park, national park service, nature, old faithful, outdoors, park, pine, range, river, subalpine, supervolcano, tourism, tourist, tree, united states, upper geyser basin, usa, volcanic, volcano, water, wildlife, wyoming, yellowstone,