Dam and water intake towers, dam, Colorado River, Hoover Dam, Hoover Dam, Mike O'Callaghan-Pat Tillman Memorial Bridge, Arizona and Nevada, USA, North America

alternative energies alternative energy american americas america arizona artificial lakes artificial lake barrage barrenness barren blue sky bridges bridge buildings building colorado river dams dam walls dam wall dam daylight daytime day deserts desert desolate droughts drought dryness dry eco friendly ecofriendly electricity supply electricity energy sources energy source environmentally friendly good weather green energy hoover dam hydroelectric power stations hydroelectric power station hydroelectric power hydropower hydro power incidental people lake mead national recreation area lake mead recreation area lakes lake meager meagre nevada power generations power generation power supplies power supply power regenerative renewable energy renewable reservoir dam rivers river sustainable travel photography travel united states of america united states us american us america usa water power water supplies water supply