Ключевые слова: america, american, antelope, arizona, canyon, chimney, clouds, coal, desertic, ecology, energy, environment, generating, industrial, industry, issue, landscape, nation, natural, nature, navajo, outdoor, page, panorama, panoranic, plant, pollution, power, production, red, rise, rocks, rocky, salt river, sand, sandstone, scenic, sky, smoke, station, steam, stone, travel, usa, vapor, view, wall, west, winter,