Assertion: dusky grouse | /r/AtLocation | washington
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text: In Washington, it is found in three distinct areas separated by the vast expanse of the largely unforested Columbia Plateau and Okanogan River valley—the east slopes of the north Cascades in Okanogan, Chelan, and northern Kittitas counties; the Okanogan Highlands and Selkirk Mountains of the northeast; and the Blue Mountains of the southeast.