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Okanogan County topographic maps

Click on a map to view its topography, its elevation and its terrain.

Grand Coulee Dam

United States of America > Washington > Okanogan County

After power shortages in the Northwest during the 1960s, it was determined the six remaining planned pumps be pump-generators. When energy demand is high, the pump-generators can generate electricity with water from the Banks Lake feeder canal adjacent to the dam at a higher elevation. By 1973, the…

Average elevation: 1,388 ft