U.S. Geography

What is the longest river that lies entirely within the state of Ohio?

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Which famous female outlaw is buried in Oklahoma?
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What Kentucky attraction is the world's longest cave?
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What year was the Theodore Roosevelt National Park in North Dakota established?
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Which university is located in Rhode Island?
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In which U.S. state includes the cities of Detroit, Grand Rapids, Warren and Flint?
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Which state in the eastern U.S. is known as the "Empire State"?
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Where is Vassar College located?
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In which U.S. state will you find the cities of Des Moines, Cedar Rapids, Davenport and Sioux City?
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