The Glacier National Park is among the most famous ones in the country. Its alpine meadows and rugged mountains is what make it perfect to visit in the wintertime. Go on one of the guided snowshoe walks or watch the sunset at Lake McDonald. You can also go camping – auto camping is available at the Apgar Picnic Area and St. Mary Campground. There is no charge for camping in the winter but you need to get a backcountry permit. Popular activities include skiing and snowshoeing trails because some of the most spectacular scenery can be seen by going on these trails.