Yellowstone National Park is now open for the winter season as visitors are now able to travel to the park's interior roads on commercially guided snowmobiles or snowcoaches from the North, West and South entrances.
Travel through the park's East entrance over Sylvan Pass is scheduled to begin December 22nd. Winter use in Yellowstone this season is being managed under an operating plan much in the same manner as has been permitted the last three winters. Under the rule, up to 318 commercially guided snowmobiles and up to 78 commercially guided snowcoaches will be allowed into the park each day.
In early 2013, the National Park Service intends to issue a Final Supplemental Environmental Impact Statement and a proposed rule to guide long-term winter use in Yellowstone, which will take effect in time for the 2013-2014 winter season.