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Sioux City, Iowa Sioux City, Iowa
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Sioux City, Iowa
Sioux City, Iowa Sioux City, Iowa.

Sioux City

Iowa, United States
Also known as: Thompsonville
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Britannica Editors
Encyclopaedia Britannica's editors oversee subject areas in which they have extensive knowledge, whether from years of experience gained by working on that content or via study for an advanced degree....
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Sioux City, city, seat (1856) of Woodbury county, northwestern Iowa, U.S. It lies on the Missouri River (bridged to South Sioux City, Nebraska) at the influx of the Big Sioux and Floyd rivers, where Iowa, South Dakota, and Nebraska meet. The former territory of Omaha, Sioux, and Oto peoples, the site was visited in 1804 by the Lewis and Clark Expedition; Sergeant Charles Floyd, the expedition’s only fatality, was buried there (commemorated by a monument...

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