Yellowstone National Park's East Entrance is scheduled to open for the winter season today.
According to a media release from the park, only rubber-tracked snowcoaches and snowmobiles will be allowed from the East Entrance to Sylvan Pass to Fishing Bridge to West Thumb. Steel-tracked vehicles will not be allowed until more snow falls on the route.
Other areas of the park have been opened for winter use with travel restrictions, the release says:
Mammoth Hot Springs-Norris-West Entrance-Old Faithful: commercially guided wheeled vehicles and rubber tracked snowcoaches only.
Norris-Canyon: Commercially-guided rubber tracked snowcoaches only.
South Entrance-West Thumb-Old Faithful: Commercially guided rubber and steel-tracked snowcoaches and snowmobiles.
Park officials say they will continue to monitor other sections of the park and open them to winter use as the snow falls.
Year-round travel is maintained from the park's North Entrance through Mammoth Hot Springs to Cooke City, Montana.