This collection comes from Yellowstone National Park two weeks ago on a day when the mercury dipped to an uncomfortable negative ten degrees. Extreme temps are the norm here. Winter occupies almost three-quarters of the year, and snow commonly remains in the mountains until June and returns as early as September.
The park’s thermal features can make for interesting scenes on cold days like this. Featured here are the spectacular Mammoth terrace formations, Gardner Canyon, The Boiling River, and some very chilly bison.