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Snake, river, 1,038 mi (1,670 km) long, NW United States, the chief tributary of the Columbia; once called the Lewis River. The Snake rises in NW Wyoming, in Yellowstone National Park, flows t...
Idaho, one of the Rocky Mt. states in the NW United States. It is bordered by Montana and Wyoming (E), Utah and Nevada (S), Oregon and Washington (W), and the Canadian province of British Colu...
Oregon, state in the Pacific Northwest of the United States. It is bordered by Washington, across the Columbia R. (N), Idaho, partially across the Snake R. (E), Nevada and California (S), and ...
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