National Park Service LogoU.S. Department of the InteriorNational Park ServiceNational Park Service
National Park Service: U.S. Department of the InteriorNational Park Service Arrowhead
 
 
Making America's Best Idea Even Better
Yellowstone National ParkJuvenile Bighorn Sheep casually amble along a precipice near Tower Falls.
view map
text size:largestlargernormal
printer friendly
Yellowstone National Park
Reports by Park Geologists

These reports are generated by park geologists. We began presenting them on the Website in March of 2004. Reports will be added as they are created.


The links that are labeled 'pdf' can only be viewed or printed using Adobe Acrobat Reader (available free, online).
Yellowstone Wolf.  

Did You Know?
There were no wolves in Yellowstone in 1994. The wolves that were reintroduced in 1995 and 1996 thrived and there are now over 300 of their descendents living in the Greater Yellowstone Area.

Disclaimer Accessibility Privacy Policy FOIA Notices USA.gov

Last Updated: August 18, 2006 at 16:12 EST