Top 10 Things to Know for a Winter Visit to Yellowstone National Park The winter season began in Yellowstone National Park Wednesday, December 15, and most park roads opened to over-snow vehicles. Due to limited snow, travel will be restricted to snowcoaches until conditions improve. Related: 9 Winter Camping Tips and Tricks to Stay Warm and Dry Annually from mid-December until mid-March, visitors travel most of the parkโs roads by commercially guided snowmobiles […] SnowBrains | December 20, 2021 0 Comments