Hydro-electric pylons and the east bound locks at the Three Gorges Dam project on the Yangtze River at Sandouping. Power generation increased river trade and flood control are the main objectives of t...

Artificial waterfall overflow from Canal de Poncebos which supplies the hydro-electric plant at Poncebos with jagged limestone cliffs of Cueto del Pando above.

USA, Nevada, Aerial view of the the Hoover Dam from helicopter.