The Caspian Sea is also classed as the world's largest lake.
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An earthquake on Dec. 16, 1811 caused parts of the Mississippi River to flow backwards.
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Every person in the world can fit in Texas and be given over 1000 sq ft in which to live.
14
Due to gravitational effects, you weigh slightly less when the moon is directly overhead.
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Louisiana is the only state that grows in land area every year (Due to alluvial deposits from the Mississippi River).
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Forest growth in the US has exceeded harvest since the 1940’s. Today, we have more trees than any time in the past 100 years.
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The longest cave in the world is the 'Mammoth Cave System' in the USA at 560,000 mtrs deep!
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