Ключевые слова: attraction, boiling, cloud, cone, countryside, destination, eruption, exterior, famous, fir, geology, geothermal, geyser, grass, horizontal, hot spot, landmark, landscape, low angle view, national park, naturally, no people, old faithful, outdoors, photogenic, picturesque, place, rock, rugged, rural, scenic, spruce, steam, supervolcano, tourism, travel, tree, united states, vegetation, volcanism, volcano, water, wilderness, wyoming, yellowstone,