National Park Service, U.S. Department of the Interior National Park Service arrowhead
Mammoth Cave Guide Johnny Merideth leads Wild Cavers along Robertson Avenue, nearing the end of the 5-mile, 6-hour tour. Image courtesy of Gary Berdeaux.

MAMMOTH CAVE NATIONAL PARK

Katie Seadler, a park hydrologist, manages a water lab the park shares with Western Kentucky University. Mammoth Cave has been monitoring water quality for more than 30 years.
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www.nps.gov/parkoftheweek/photo-369.htm Updated: Monday, 18-Apr-2005 12:15:17 EDT
   
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