Sketch map of the mouth of the Columbia River, northern side, from Lewis and Clark Expedition.

From Gary Moulton, editor, Atlas of the Lweis and Clark Expedition. Lincoln, University of Nebraske Press, 1983. Map 82. Originals: Yale Collection of Western Americana, Beinecke Rare Book and Manuscript Library, Yale University. (Courtesy Special Collections Division, University of Washington Libraries.)

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