Started out in Bozeman, stayed a first night in Mammoth Hot Springs, stayed several days around Old Faithful, and then back to the Mammoth Hot Springs area for the Wolf Discovery tour.
Bison near Biscuit Basin Old Faithful Area, Yellowstone National Park, Wyoming
Just as our half track starts out, we see a group of bison with a lot of snow. It's so overcast it almost looks like a black and white shot. - February 05, 2011 - 1/320 sec at f / 9.0 - 40 mm - ISO 200 - 44°28'56" N 110°51'10" W