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[Map of Missouri River and vicinity from Saint Charles, Missouri, to Mandan villages of North Dakota : used by Meriwether Lewis and William Clark in their 1804 expedition up Missouri River].
Date from accompanying text. Relief shown by symbols for "Black Mountains" or Black Hills. Some place names in both English and French. Based on surveys up to the Mandan-Hidatsa villages by James Mackay and John Evans. Longitudinal errors, at least in part, account for map not being drawn to scale. Prime meridian: Paris [?]. Pen-and-ink. Some pen-and-ink annotations made after 1798. Map backed with...
Finiels, Nicolas De. - Lewis, Meriwether - Clark, William - Harrison, William Henry - Mackay, James - Evans, John