A map of Lewis and Clark's track, across the western portion of North America from the Mississippi to the Pacific Ocean; by order of the executive of the United States in 1804, 5 & 6.
Lewis, Samuel, 1753 or 1754-1822
Lewis and Clark Expedition (1804-1806)--Maps.
[Bradford and Inskeep], Iowa City, State Historical Society of Iowa
United States of America
Pennsylvania State University
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