Ключевые слова: america, arch, arizona, background, blue, bridge, canyon, clouds, colorado, construction, curve, dam, deep, electricity, energy, glen, glen canyon dam, hydroelectric, infrastructure, infrastructure buildings, lake, landmark, landscape, mead, modern, national, natural, orange, outdoor, page, park, power, power plant, river, road, rock, scenic, sky, steel, usa, water, world, yellow,