Ключевые слова: acid, america, boiling, boiling mud, clouds, corrosion, danger, erosion, fountain paint pot, fountain paint pot trail, geology, geysers, hot springs, landscape, limestone, limestone formations, mud, mud pools, natures, orange, paint pot, panorama, park, sky, spa, steam, sulfur, summer, sun, tourism, toxic, travel, trees, united states, vegetation, water, wonderful, wyoming, yellowstone, yellowstone national park,