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Lake Mead: Clear and Vital
http://gallery.usgs.gov/videos/643
"Lake Mead Clear and Vital" is a thirteen minute documentary relating the crucial role of science in maintaining high water quality in Lake Mead. The program was produced coincident with release of the Lakes Mead and Mohave Circular a USGS publication covering past and ongoing research in the lakes and tributaries of the Lake Mead National Recreation Area.
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