The Atazar reservoir and dam in the mountain range of Madrid, Spain. dam, reservoir, landscape, hydroelectric, power generation, atazar, madrid, mountain, nature, aerial view, generating, europe, isabel ii, lake, spain, blue, canal, concrete, construction, dike, drone, ecosystem, el atazar, electricity, energy, engineering, environment, flood, full, generator, hydraulics, hydro, industry, structural, top, turbine, view, wall, water