Nature & Science
Yellowstone Resources and Issues Handbook: The handbook our naturalists use to answer many basic park questions.
Natural Resource Vital Signs, 2011 (3.5 MB pdf): Yellowstone National Park's report to help park managers and scientists more fully understand the status of important ecological "health indicators."
Greater Yellowstone Science Learning Center: The most up-to-date scientific information about resources in Yellowstone, Grand Teton, and Bighorn Canyon.
Research Permits: Information for scientists on how to obtain a Research and Collecting Permit.
Spatial Analysis Center uses computerized geographic information to track cultural and natural resources of Yellowstone National Park.
U.S. Geological Survey site:Yellowstone Volcano Observatory
The following come to us courtesy of Bob Smith, University of Utah:
And courtesy of David Montieth & Contributors:Yellowstone Geysers
National Academy of Sciences & National Research Council Reports
Did You Know?
Some groups of Shoshone Indians, who adapted to a mountain existence, chose not to acquire the horse. These included the Sheep Eaters, or Tukudika, who used dogs to transport food, hides, and other provisions. The Sheep Eaters lived in many locations in Yellowstone.