U.S. Geography

What is the two-letter postal abbreviation for the state of Colorado?

More Questions from U.S. Geography
Which of these rivers is located in the U.S.?
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Which state ranked 50th in 2006 population and has Indian paintbrush as its state flower?
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Which of these states borders Iowa?
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Where in Georgia was America's first official public university located?
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Which of these mountain ranges can be found in Oklahoma?
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What year was Detroit incorporated as a city?
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What hurricane struck southeastern Louisiana in late August of 2005?
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Which state is the furthest south?
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