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Columbia River Instream Atlas

Publication number Date Published
11-12-015September 2011
VIEW NOW Columbia River Instream Atlas (Number of pages: 453) (Publication Size: 16990KB)

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Author(s) WDFW
Description The “Columbia River Instream Atlas" identifies where fish may be struggling and why and where Ecology might have the most success with Instream flow investments. Three important factors aid in making streamflow enhancement decisions: habitat, streamflows, and the amount of fish in a stream. The Atlas scores each of the three factors for portions of streams, called reaches, located in eight of the most "fish critical" watersheds in eastern Washington (WRIAs in the Walla Walla, Middle Snake, Yakima, Methow, Wenatchee, and Okangogan basins). The scores allow Ecology to tailor projects to make needed improvements and maximize returns.
The mission of the Department of Ecology is to protect, preserve, and enhance Washington’s environment. To help us meet that goal, please consider the environment before you print or request a copy.

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Keywords Instream benefits, legislative report, Columbia River, fish, water resources

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