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Olympic National Park: Elwha River Restoration

Olympic National Park: Elwha River Restoration

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Nature

视频说明

This five-minute 'webisode' offers an introduction to the Elwha River, its people, its once-prolific salmon runs, the century of hydropower the river produced and the eventual decision to remove Elwha and Glines Canyon Dams.

分类： 热门免费线上视频标签疯狂娱乐
插件 13 May 2016
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