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Water is a resource, a recreation, and a requirement for life itself. It is also a sight to behold, whether it's the product of millions of years of geological evolution or a remarkable feat of modern engineering. This aerial excursion whisks you above America's massive lakes, powerful rivers, mind-boggling glaciers, and shape-shifting wetlands as well as its man-made dams and canals. See how our interaction with water has shaped our nation's landscape and its history, and how its importance continues to ripple from coast to coast. (Smithsonian Channel)
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