Old Faithful Bison
A bull bison grazes on golden autumn grasses while Old Faithful Geyser steams in the background. Bison like to hang out in the geyser basins both summer and winter. The geyser basins provide food, warm ground to nap on, and some shelter.
The steam clouds, from left to right: Old Faithful Geyser, Daisy Geyser, Riverside Geyser, and Lion Geyser. Daisy and Lion are erupting.