Yellowstone Resources and Issues
http://www.nps.gov/yell/planyourvisit/yellowstone-resources-and-issues-handbook.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. There are summary boxes containing key facts, main text providing an overview of the subject, and a resource list for more information. The chapters of the book are freely downloadable as PDF files.

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