2018-2019 Winter Opening Dates

Conditions permitting, roads will open to oversnow travel by snowmobile and snowcoach at 8 am on the following dates:

  • December 15: West Entrance to Old Faithful, Mammoth to Old Faithful, Canyon to Norris, Canyon to Lake, Old Faithful to West Thumb, South Entrance to Lake, Lake to Lake Butte Overlook.
  • December 22: East Entrance to Lake Butte Overlook (Sylvan Pass)