U.S. Geography

What rock was adopted as Missouri's official state rock in 1967?

More Questions from U.S. Geography
Which of the following deserts is located in the United States?
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Where is Jackson Square located?
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Wyoming was the first state to grant the right to vote to whom?
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Who built the first settlement on the land that is now Chicago in 1779?
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At 103,730 square miles, where does Colorado rank compared to other states in total land area?
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What forms the border between Maryland and Delaware?
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Washington Territory was formed from part of which other state's territory?
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Which state got its name from an Iroquois word meaning "Happy Hunting Ground"?
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