Beginning November 2, snow will be allowed to accumulate on park roadways in preparation for the winter season. At 8 a.m. on Wednesday, December 16, 1998. Yellowstone will open for the winter season to oversnow vehicles.
Winter oversnow road openings are dependent on sufficient snow.
On Wednesday, March 10, Norris Junction to Madison Junction, and Norris junction to Canyon will close. All remaining groomed roads will close to oversnow vehicle use at 8 a.m. on Monday, March 15, 1999. When the interior park roads close to automobile traffic on November 2, non-motorized travel in the form of bicycles, roller blades and roller skis, will be allowed as long as weather permits. Specific information on these types of activities can be obtained by contacting the park.