Ключевые слова: america, basaltic, basin, color, colors, forest, forestry, formations, geological, geology, geyser, geysers, h2o, hazards, horizon, horizontal, hydrothermal, lake, national, natural, nature, panorama, plateau, rocks, scenery, scenic, steam, supervulcano, thumb, tree, trees, usa, volcanism, volcano, water, wyoming, yellowstone,