News Release

Sylvan Pass opens for oversnow travel on December 22, 2019

a group of snowmobiles on a snowy road
Snowmobiles riding the park road

NPS/Jacob W. Frank

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News Release Date: December 17, 2019

Contact: Morgan Warthin, (307) 344-2015

  • Beginning Sunday, December 22 at 8 a.m., East Entrance to Lake Butte Overlook (Sylvan Pass) will open to the public for oversnow travel on commercially-guided snowmobiles. Visitors who have proper permits can also take non-commercially guided snowmobile trips. 
  • Get up-to-date road information:
    • Visit Roads for the status of Yellowstone roads
    • Call (307) 344-2117 for recorded information
    • Sign up to receive Yellowstone road alerts on your mobile phone by texting "82190" to 888-777 (an automatic text reply will confirm receipt and provide instructions). 
  • Anticipate possible road closures due to inclement weather and dangerous driving conditions.

Last updated: December 17, 2019

Contact the Park

Mailing Address:

PO Box 168
Yellowstone National Park, WY 82190-0168



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