Aerial view of Hoover Dam and roadway, Las Vegas, Nevada, United States of America

road arch outdoors day daytime aerial industrial urban industry engineering shadow roads roadway landmark rocks electric electricity resource brown desert arid butte sandstone shadows landmarks electrical tourism generator bluff concrete infrastructure generation dam arid climate grand canyon local landmark tourist attractions dams outside power environmentally friendly nobody environmental sand natural travel river energy color image water aerial view tourist attraction travel destination travel destinations place of interest renewable no one colorado river no people local landmarks green energy black canyon hoover dam clean energy places of interest arch gravity dam arched dam