1. The Winter Wonderland of Yellowstone

2. Problem: impacts to air; impacts to wildlife; impacts to soundscape Management Strategies: limit use; reduce the impact of use Management Practices: facility development/ site design/maintenance; rationing/allocation; rules/regulations; law enforcement

3. The Winter Wonderland of Yellowstone 1872, Yellowstone National Park, first in world Geothermal features 60% of world’s geysers Part of Greater Yellowstone Ecosystem 1950s – first snowmobiles in park 1960s – park begins grooming oversnow trails Air and noise pollution stress winter wildlife Late 1990s – nearly 800 snowmobiles per day

4. The Winter Wonderland of Yellowstone Multiple lawsuits, interim plans Technology requirements for snowmobiles Daily snowmobile and snowcoach limit Guides required Speed limits of 35 to 45 mph $5,000 fine for off-trail travel Travel between 7am and 9pm Long-term planning efforts

7. Yellowstone National Park

21. The Winter Wonderland of Yellowstone Snowmobile Best Available Technology list Winter Visitor Travel Routes map