Ключевые слова: caldera, canyon, cascade, cataract, ccosystem, erosion, fall, features, forest, geothermal, geyser, gorge, grand, hike, hiking, hot spring, hydrothermal, idaho, landmark, lower fall, montana, mount, mountain, national park, national park service, nature, outdoors, park, pine, range, river, rock, subalpine, supervolcano, tourism, tourist, tree, united states, usa, volcanic, volcano, water, waterfall, wildlife, wyoming, yellowstone,