* 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.
Source: U.S. Department of the Interior, National Park Service