Ключевые слова: aerial, alternative, america, american, arizona, az, boulder, bridge, built, canyon, concrete, construction, dam, desert, electric, electricity, energy, engineering, famous, generator, geology, high, hoover, hydro, hydroelectric, hydropower, industrial, industry, landmark, landmarks, landscape, landscapes, mead, mountain, national, nature, nevada, power, reservoir, river, scene, scenic, states, station, tourism, united, us, usa, view, vista,