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The Power of the Columbia
This site uses graphics, sound, and video to showcase the Columbia River, which flows through British Columbia, Washington state, and Oregon. It traces the Columbia's beginnings as a stream in the Canadian mountains and describes the basin's geologic history. Explains hydropower concepts such as multipurpose dams, the hydrologic cycle, power generation, flood control, river navigation, fish passage, irrigation, and power storage. From the Bonneville Power Administration.
http://www.bpa.gov/Power/pl/columbia/
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