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    Yellowstone

    National Park ID,MT,WY

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  • Craig Pass Closed for the Season; Mammoth to Norris, Expect 30-minute Delays

    The road linking West Thumb and Old Faithful is closed for the season—traffic should detour through West Thumb, Lake, and Canyon. More »

Winter Use Adaptive Management Program: Air Quality and Soundscape

Background and Area of Focus

The Soundscape and Air Quality Working Group will make recommendations to the NPS on the design of an updated monitoring strategy that measures and evaluates the impacts of oversnow vehicle use on the park's natural soundscape and on the park's air quality to ensure a cleaner and quieter park, and compliance with the new winter use sound and air emissions requirements.

Meeting Agendas
Meeting #1:
Meeting Notes

Meeting #1

Monitoring Strategy
Other Supporting Materials

Did You Know?

Upper Geyser Basin Hydrothermal Features on a Winter Day.

Yellowstone contains approximately one-half of the world’s hydrothermal features. There are over 10,000 hydrothermal features, including over 300 geysers, in the park.