Travel

From ancient trees to towering volcanoes, take in scientific wonders at national parks

Larry Bleiberg, Special to USA TODAY Comments Off on From ancient trees to towering volcanoes, take in scientific wonders at national parks

Interest in national parks is booming, with crowd-wary Americans drawn to wide open spaces and natural beauty. But they're also great places to learn.

      
Larry Bleiberg, Special to USA TODAY
http://api-internal.usatoday.com.akadns.net

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