Ключевые слова: abstract, action, background, boil, boiling, bubble, bubbling, closeup, crater, dangerous, detail, flow, flowing, frozen, fumarole, gas, geology, geothermal, geothermal field, high speed, hot spring, landscape, liquid, motion, mud, mudpot, national park, nature, pour, ripple, sculpture, shake, smell, soil, solfatare, splash, splashing, steam, stinking, texture, thermal, usa, volcanic, wave, wyoming, yellowstone,