Yellowstone Resources and Issues
https://www.nps.gov/yell/learn/resources-and-issues.htm

Yellowstone National Park


This Yellowstone National Park online book is a compendium of concise information about the park's history, natural and cultural resources, issues, and major areas. Chapters, which are downloadable as PDF files, focus on the history of the park, the yellowstone ecosystem, geology, life in extreme heat (as in the hot springs), vegetation, fire in yellowstone, wildlife, and park issues.

This resource is referenced here:
Subject: Biology, Geoscience:Geology:Geophysics, Geochemistry, Structural Geology
Resource Type: Audio/Visual:Maps, Scientific Resources:Overview/Reference Work
Theme: Teach the Earth:Course Topics:Geophysics, Geochemistry, Structural Geology
Focus on Yellowstone: Volcanism, Yellowstone hazards, Wildlife and plants, GeomicrobiologyKeywords: Greater Yellowstone Ecosystem, thermophiles, vegetation, fire, wildlife