I just returned from five days shooting in Yellowstone National Park. This was my first time exploring the park in the winter, and it was a fantastic experience.
Yellowstone is essentially closed to cars from late autumn until spring - so the only way to see it this time of year is by snowcoach, via snowmobile, or on foot (cross country skis or, for the truly ambitious, snowshoes). This dramatically reduces the number of people visiting, which is a bonus in terms of being able to enjoy the vast landscapes.
At an average elevation of 8,000 feet, temperatures can be brutal during the winter months. In fact, the initial two days of the shoot it was -23 and -22 degrees respectively. The first location on each of those mornings was a bit of a jolt! The extreme cold, however, combined with the thermal features within the park to create some magical landscapes. Truly a winter wonderland.