This was an interesting moment back in August as I was checking out the Upper Terrace Loop Drive near Mammoth Hot Springs. I’ve lived in or near Yellowstone National Park for almost 20 years and had never seen mule deer actually walking through the terraces. That of course doesn’t mean it’s never happened or isn’t common, just that I personally haven’t seen it before. The adults were licking the moisture off the dead trees, presumably to get minerals deposited by the steam. The fawn wasn’t too sure about walking around all the steaming water but followed its mother as she did her thing.