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National Park Service
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Did You Know?
Obsidian has been found at a few Hopewell earthwork sites. The majority of obsidian, several hundred pounds, was found in one mound at Hopewell Mound Group. Some of the obsidian was from Yellowstone National Park in Wyoming- over 1,500 miles away.
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Last Updated: July 25, 2006 at 00:22 EST |