Some bull bison prefer to take their chances with the weather, wintering high in Yellowstone National Park, rather than migrating to lower elevations. These largely solitary animals are tough as nails, spending months at a time in deep snow.
This black and white photo taken on Soda Butte Creek above Lamar Valley shows a trio of bulls below the towering peaks of Wyoming. It's available in several sizes on different medias. Each size is limited to 11 prints, comes signed and numbered, and ships free to all lower 48 states.