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Yellowstone National ParkJuvenile 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).


Fire in Yellowstone Pineland in 1988  

Did You Know?
The 1988 fires affected 793,880 acres or 36 percent of the park. Five fires burned into the park that year from adjacent public lands. The largest, the North Fork Fire, started from a discarded cigarette. It burned more than 410,000 acres.

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Last Updated: July 14, 2008 at 14:50 EST