Frozen Fog in the Southern Appalachians

Frozen fog also called "hoarfrost" in the Southern Appalachians is called "pogonip" by Native Americans out west. The beauty of "hoarfrost" is that it coats the trees with a thick covering of frost only where fog travels. In this image you can see the evidence of how selective this type of frost can be. The frost produces a very reflective surface which causes the coated trees in this image to appear blue as the trees reflect the deep blue sky above.LynnFreeny.com