Ключевые слова: america, arch, architecture, arizona, attraction, blue sky, bridge, canyon, colorado, colorado river, concrete, construction, dam, desert, electric, electric power, electricity, energy, engineering, generator, gigantic, hydro, hydro electric, hydroelectric, industry, lake, landmark, landscape, massive, memorial, mountain, nature, nevada, outdoors, plant, popular, power, power plant, river, technology, tourism, travel, united states, usa, view, water,