U.S. Geography

What Iowa fort was the first of its kind, built to protect one Native American group from another?

More Questions from U.S. Geography
Which U.S. state is appropriately named the "Pineapple State"?
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In what city would you find Sheridan County Airport?
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Which northern state is known as the "Land of 10,000 Lakes"?
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The Woodstock Music and Arts Fair of the 1960's was actually held in what New York city?
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What is the longest river that lies entirely within the state of Ohio?
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What Nebraska county is the origin of the world's largest "Wooly Mammoth" elephant fossil?
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Which U.S. state has Woodall Mountain as its highest point and the Magnolia as its flower?
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In which U.S. state is the city of Kalamazoo located?
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