Lesson Four: Americans Enter the Rivalry

The Lewis & Clark Expedition

Sketch Map of the Mouth of the Columbia River, Northern Side, from the Lewis and Clark Expedition.

From Gary Moulton, editor, Atlas of the Lewis and Clark Expedition. Lincoln, University of Nebraska 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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