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    Hoover Dam, Nevada, United States — Stock Photo
    Hoover Dam, Nevada, United States
    Aerial view of alpine dam and reservoir lake Kolnbreinsperre, Malta valley, Carinthia, Austria — Stock Photo
    Aerial view of alpine dam and reservoir lake Kolnbreinsperre, Malta valley, Carinthia, Austria
    Beautiful landscape with lake coveerd with fog, qianxi, Hebei, China — Stock Photo
    Beautiful landscape with lake coveerd with fog, qianxi, Hebei, China
    Aerial view of lake Mooserboden and dam wall, Kaprun High Mountain reservoirs, Salzburg, Austria — Stock Photo
    Aerial view of lake Mooserboden and dam wall, Kaprun High Mountain reservoirs, Salzburg, Austria
    View of Salto De La Encantada — Stock Photo
    View of Salto De La Encantada
    Aerial view of lake Mooserboden and dam wall, Kaprun High Mountain reservoirs, Salzburg, Austria — Stock Photo
    Aerial view of lake Mooserboden and dam wall, Kaprun High Mountain reservoirs, Salzburg, Austria
    Oil pump with blue sky in norway — Stock Photo
    Oil pump with blue sky in norway
    Aerial view of lake Mooserboden and dam wall, Kaprun High Mountain reservoirs, Salzburg, Austria — Stock Photo
    Aerial view of lake Mooserboden and dam wall, Kaprun High Mountain reservoirs, Salzburg, Austria
    Aerial view of lake Mooserboden and dam wall, Kaprun High Mountain reservoirs, Salzburg, Austria — Stock Photo
    Aerial view of lake Mooserboden and dam wall, Kaprun High Mountain reservoirs, Salzburg, Austria
    Hydroelectric power turbines at Gardiner Dam on Lake Diefenbaker, Saskatchewan, Canada — Stock Photo
    Hydroelectric power turbines at Gardiner Dam on Lake Diefenbaker, Saskatchewan, Canada
    Aerial view of alpine dam and reservoir lake Kolnbreinsperre, Malta valley, Carinthia, Austria — Stock Photo
    Aerial view of alpine dam and reservoir lake Kolnbreinsperre, Malta valley, Carinthia, Austria
    Aerial view of lake Mooserboden and dam wall, Kaprun High Mountain reservoirs, Salzburg, Austria — Stock Photo
    Aerial view of lake Mooserboden and dam wall, Kaprun High Mountain reservoirs, Salzburg, Austria
    Orange construction crane, Vantage, Washington, USA — Stock Photo
    Orange construction crane, Vantage, Washington, USA
    Mooserboden dam and reservoir, Kaprun, Zell am See, Salzburg, Austria — Stock Photo
    Mooserboden dam and reservoir, Kaprun, Zell am See, Salzburg, Austria
    From above view of modern hydroelectric power station with reservoir river in green hills — Stock Photo
    From above view of modern hydroelectric power station with reservoir river in green hills
    Mooserboden dam and reservoir, Kaprun, Zell am See, Salzburg, Austria — Stock Photo
    Mooserboden dam and reservoir, Kaprun, Zell am See, Salzburg, Austria
    Water slough at hydroelectric dam, Vantage, Washington, USA — Stock Photo
    Water slough at hydroelectric dam, Vantage, Washington, USA
    Concrete hydroelectric power station in sunlight — Stock Photo
    Concrete hydroelectric power station in sunlight
    Hydroelectric towers in farmland, Fraser Valley, British Columbia, Canada. — Stock Photo
    Hydroelectric towers in farmland, Fraser Valley, British Columbia, Canada.
    Hover Dam Complex on Colorado River, Nevada, USA — Stock Photo
    Hover Dam Complex on Colorado River, Nevada, USA
    Row of large turbines in industrial dam, Hoover Dam, Nevada, United States — Stock Photo
    Row of large turbines in industrial dam, Hoover Dam, Nevada, United States
    Aerial view of lake Mooserboden and dam wall, Kaprun High Mountain reservoirs, Salzburg, Austria — Stock Photo
    Aerial view of lake Mooserboden and dam wall, Kaprun High Mountain reservoirs, Salzburg, Austria
    Hydroelectric power turbines — Stock Photo
    Hydroelectric power turbines
    Iron Gate, Hydroelectric Power Station, the largest dam on the Danube River and one of the largest hydro power plants in Europe; Drobeta-Turnu Severin, Judeul Mehedini, Serbia — Stock Photo
    Iron Gate, Hydroelectric Power Station, the largest dam on the Danube River and one of the largest hydro power plants in Europe; Drobeta-Turnu Severin, Judeul Mehedini, Serbia
    Hydroelectric pipeline and dam at hydroelectric power station on loch in Perthshire, Scotland — Stock Photo
    Hydroelectric pipeline and dam at hydroelectric power station on loch in Perthshire, Scotland
    Closed dam floodgate in Vantage, Washington, USA — Stock Photo
    Closed dam floodgate in Vantage, Washington, USA
    Aerial view of alpine dam and reservoir lake Kolnbreinsperre, Malta valley, Carinthia, Austria — Stock Photo
    Aerial view of alpine dam and reservoir lake Kolnbreinsperre, Malta valley, Carinthia, Austria
    Construction crane on dam over Columbia River, high angle view, Washington, USA — Stock Photo
    Construction crane on dam over Columbia River, high angle view, Washington, USA
    Green mountainous landscape with lake and cloudy sky — Stock Photo
    Green mountainous landscape with lake and cloudy sky
    Electrical Power Station at Hoover Dam — Stock Photo
    Electrical Power Station at Hoover Dam
    Hydroelectric dam and pipeline at hydroelectric power station on loch in Perthshire, Scotland — Stock Photo
    Hydroelectric dam and pipeline at hydroelectric power station on loch in Perthshire, Scotland
    Water flowing out of base of dam at hydroelectric power station in Perthshire, Scotland — Stock Photo
    Water flowing out of base of dam at hydroelectric power station in Perthshire, Scotland
    Construction of the electric power lines — Stock Photo
    Construction of the electric power lines
    Zhinvali reservoir in Caucasus mountains, Zhinvali, Georgia — Stock Photo
    Zhinvali reservoir in Caucasus mountains, Zhinvali, Georgia
    Aerial view of lake Mooserboden and dam wall, Kaprun High Mountain reservoirs, Salzburg, Austria — Stock Photo
    Aerial view of lake Mooserboden and dam wall, Kaprun High Mountain reservoirs, Salzburg, Austria
    Hydroelectric power turbines at Gardiner Dam on Lake Diefenbaker, Saskatchewan, Canada — Stock Photo
    Hydroelectric power turbines at Gardiner Dam on Lake Diefenbaker, Saskatchewan, Canada
    Hoover Dam Complex, Nevada, USA — Stock Photo
    Hoover Dam Complex, Nevada, USA
    Hydroelectric power turbines at Gardiner Dam, Lake Diefenbaker, Saskatchewan, Canada — Stock Photo
    Hydroelectric power turbines at Gardiner Dam, Lake Diefenbaker, Saskatchewan, Canada
    Dam on the Mississippi River in Minneapolis, Minnesota, USA — Stock Photo
    Dam on the Mississippi River in Minneapolis, Minnesota, USA
    The construction of the Hoover Dam — Stock Photo
    The construction of the Hoover Dam
    Longyangxia reservoir, Qinghai Province, China — Stock Photo
    Longyangxia reservoir, Qinghai Province, China
    Hover Dam Complex on Colorado River, Nevada, USA — Stock Photo
    Hover Dam Complex on Colorado River, Nevada, USA
    Scenic view of Lake Ruataniwha, Mackenzie Basin, South Island, New Zealand — Stock Photo
    Scenic view of Lake Ruataniwha, Mackenzie Basin, South Island, New Zealand
    Contemporary hydroelectric power station in landscape — Stock Photo
    Contemporary hydroelectric power station in landscape
    Aerial view of lake Mooserboden and dam wall, Kaprun High Mountain reservoirs, Salzburg, Austria — Stock Photo
    Aerial view of lake Mooserboden and dam wall, Kaprun High Mountain reservoirs, Salzburg, Austria
    Aerial view of lake Mooserboden and dam wall, Kaprun High Mountain reservoirs, Salzburg, Austria — Stock Photo
    Aerial view of lake Mooserboden and dam wall, Kaprun High Mountain reservoirs, Salzburg, Austria
    Mooserboden dam and reservoir, Kaprun, Zell am See, Salzburg, Austria — Stock Photo
    Mooserboden dam and reservoir, Kaprun, Zell am See, Salzburg, Austria
    Beautiful landscape with mountains and Chinese Lijiaxia reservoir in Qinghai Province — Stock Photo
    Beautiful landscape with mountains and Chinese Lijiaxia reservoir in Qinghai Province
    Aerial view of alpine dam and reservoir lake Kolnbreinsperre, Malta valley, Carinthia, Austria — Stock Photo
    Aerial view of alpine dam and reservoir lake Kolnbreinsperre, Malta valley, Carinthia, Austria
    Closed dam floodgate structure over Columbia River water, Washington, USA — Stock Photo
    Closed dam floodgate structure over Columbia River water, Washington, USA
    Hover Dam Complex on Colorado River, Nevada, USA — Stock Photo
    Hover Dam Complex on Colorado River, Nevada, USA
    Zhinvali reservoir in Caucasus mountains, Zhinvali, Georgia — Stock Photo
    Zhinvali reservoir in Caucasus mountains, Zhinvali, Georgia
    Aerial view of lake Mooserboden and dam wall, Kaprun High Mountain reservoirs, Salzburg, Austria — Stock Photo
    Aerial view of lake Mooserboden and dam wall, Kaprun High Mountain reservoirs, Salzburg, Austria
    Aerial view of alpine dam and reservoir lake Kolnbreinsperre, Malta valley, Carinthia, Austria — Stock Photo
    Aerial view of alpine dam and reservoir lake Kolnbreinsperre, Malta valley, Carinthia, Austria
    Beautiful landscape with yarlung tsangpo river in valley and rocky mountains in Tibet — Stock Photo
    Beautiful landscape with yarlung tsangpo river in valley and rocky mountains in Tibet
    Concrete hydroelectric power station in sunlight — Stock Photo
    Concrete hydroelectric power station in sunlight