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Yellowstone National Park Juvenile Bighorn Sheep casually amble along a precipice near Tower Falls.
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Yellowstone National Park
Investigators' Annual Reports
• Investigators' Annual Report 2003 (1.3MB pdf)

• Investigators' Annual Report 2002 (1.7MB pdf)

• Investigators' Annual Report 2001

• Investigators' Annual Report 2000 (404KB pdf)

• Investigators' Annual Report 1999 (756KB pdf)

• Investigators' Annual Report 1997-1998 (902KB pdf)



Nationwide NPS - Investigators' Annual Report
 Database and Research Permitting Information


Research Permitting Information Specific to Yellowstone National Park

To learn more about current research projects in Yellowstone go to the Greater Yellowstone Science Learning Center and check the topic you are interested in, then click the projects link.



The pdf files on this page can only be viewed or printed using Adobe Acrobat Reader (available free, online).


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Did You Know?
Prior to the establishment of the National Park Service, the U.S. Army protected Yellowstone between 1886 and 1918. Fort Yellowstone was established at Mammoth Hot Springs for that purpose.
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Last Updated: July 14, 2008 at 14:50 MST