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Making America's Best Idea Even Better
National Park ServiceSaltpetre mining ruins in Mammoth Cave. The apparatus was damaged in the New Madrid earthquakes of 1811-1812.
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Did You Know? Native Americans mined minerals in Mammoth Cave for 2,000 years.  

Did You Know?
Native Americans of the Early Woodland period gathered minerals from Mammoth Cave between 2,000 and 4,000 years ago ... no one knows why. Objects they left behind – slippers, cane torches, gourds, and mussel shells – remain perfectly preserved in the cave.

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Last Updated: July 24, 2006 at 22:37 EST