Ключевые слова: america, arch, architecture, arizona, basin, blue, bridge, canyon, colorado, concrete, construction, dam, desert, electricity, energy, engineering, environment, flow, generation, glen, hydro, hydroelectric, hydroelectricity, industrial, lake, landmark, landscape, mountain, national, nature, outdoor, page, powell, power, red, regulation, reservoir, river, rock, scenic, sky, southwest, spillway, states, technology, tourism, travel, united, view, water,