Ключевые слова: america, architecture, arizona, blue, bridge, canyon, cement, cloud, color, colorado, concrete, dam, dams, desert, dry, electricity, energy, engineering, glen, huge, industry, lake, landmark, landscape, marble, massive, nature, north, orange, page, powell, power, pressure, red, river, rock, sandstone, sky, steel, stone, strong, structure, sunny, technology, travel, usa, view, wall, water, wave,