These bison were making their way down the groomed road on a cold morning.  I’m not sure what the temperature was on this morning, but it was cold enough for the steam from the nearby hot springs to coat the bison.  As the sun rose, the frost quickly melted off but not before some neat moments such as this one.  When it comes to winter in Yellowstone, for wildlife I think nothing is more iconic than frost or snow covered bison.