The Niagara Falls moves upstream at an average rate of about 295ft a century!
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The 'King Ranch' in Texas is bigger than the state of Rhode Island.
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The Caspian Sea is also classed as the world's largest lake.
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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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Louisiana is the only state that grows in land area every year (Due to alluvial deposits from the Mississippi River).
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The longest cave in the world is the 'Mammoth Cave System' in the USA at 560,000 mtrs deep!
63
One cubic mile of seawater contains about 50 pounds of gold.
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Every person in the world can fit in Texas and be given over 1000 sq ft in which to live.
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