One lone bison, snow grazing on the prairie, just east of the Rocky Mountains in Colorado. Even if you have more than a foot of snow on the ground, they can still dig through and find it. Oblivious to my presence he foraged about for over an hour, head down, as I sat in the snow in sub-freezing temperatures waiting for him to lift up his head. It took an hour, but he finally gave me an iconic Americana shot.