Ключевые слова: america, architecture, arizona, blue, border, boulder, bridge, colorado, colorado river, concrete, construction, dam, desert, electricity, energy, engineering, famous, glow, hydro, hydroelectric, lake, lake mead, landmark, landscape, light, mead, nature, nevada, night, power, river, sky, southwestern, states, structure, sunset, technology, tourism, travel, twilight, united, united states, usa, view, wall, water, west, wonder,