Ключевые слова: aerial, alternative, america, arch, architecture, arizona, boulder, bridge, built, cables, canyon, color, colorado, concrete, construction, dam, electric, electricity, energy, engineering, environment, famous, generation, generator, high, hoover, hoover dam, hydro, hydroelectric, industry, lake, landmark, landscape, majestic, mead, mike ocallaghanpat tillman memorial bridge, mountain, nature, nevada, outdoors, power, reservoir, river, rocks, scene, scenic, structure, technology, travel, usa, view, water,