Ключевые слова: acid, basin, chemical, cone, energy, erupting, eruption, faith, faithful, fingers, fountain, framed, geographical, geology, geothermal, geyser, heat, high, hot, jet, liquid, mist, montana, nation, old, pine, power, scenic, sky, smoke, spout, spray, states, steam, thermal, tree, trees, unique, united, united states, us, usa, vertical, volcano, water, white, wilderness, wyoming, yellowstone,