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State Facts

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    Many flags, including those representing claims by France, Spain, Mexico, and Great Britain, have flown over the land we know today as Colorado. Colorado's current state flag was officially adopted on June 5, 1911.
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Netstate, “Geography: Colorado,” updated February 25, 2016.

US Census, “Population Estimates – State Totals: Vintage 2015,” updated January 21, 2016.

US Census, “United States Summary: 2010, Population and Housing Unit Counts,” September 2012.

US Climate Data, “Colorado,” n.d.