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Mammoth Cave National Park Hikers
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Mammoth Cave National Park
"The Age of Exploration"
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Soda straw stalactite

Did You Know?
Stalactites grow downward – they hang "tight" to the ceiling – while stalagmites grow upward – they "might" reach the ceiling someday. Mammoth Cave's formations include many types of calcite formations.
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Last Updated: July 12, 2011 at 10:52 MST