Ключевые слова: america, arch, architecture, arizona, attraction, big, bridge, callaghan, canyon, colorado, concrete, construction, dam, electric, electricity, energy, engineering, environment, generator, high, historic, hoover, hydro, hydroelectric, industry, intake, lake, landmark, landscape, majestic, massive, mead, mike, nevada, outdoors, pat, plant, popular, power, river, station, technology, tillman, tourism, tourist, tower, travel, usa, visit, water,