YELLOWSTONE NATIONAL PARK — Sylvan Pass from Yellowstone’s East Entrance to the Lake Butte Overlook will open to the public at 8 a.m. Sunday, December 22 from oversnow travel.

Visitors are allowed on commercially-guided snowmobile tours and non-commercial snowmobile trips with the proper permit.

Inclement weather and dangerous conditions could close roads. Keep up with current road conditions online.