Snowmobile Usage in Yellowstone National Park
http://www.nps.gov/yell/planyourvisit/winteruse.htm

National Park Service


This National Park Service website describes the regulations on snowmobile usage in Yellowstone and extensive research on the impact of snowmobiles on wildlife areas.

This resource is referenced here:
Subject: Geoscience:Atmospheric Science:Meteorology:Air quality:Pollutants, Dust and Particulates, Environmental Science:Air Quality:Pollutants, Geoscience:Atmospheric Science:Meteorology:Air quality, Environmental Science:Policy:Environmental Decision-Making, Environmental Science:Air Quality:Dust and Particulates
Resource Type: Datasets and Tools:Datasets, Scientific Resources:Research Results
Theme: Teach the Earth:Incorporating Societal Issues:Public Policy, Teach the Earth:Course Topics:Environmental Science, Teach the Earth:Teaching Topics:Weather, Teach the Earth:Course Topics:Atmospheric Science
Environmental Policy: Environmental Decision-Making
Focus on Yellowstone: Policy and management