Yellowstone Dust Storm

Yellowstone National Park, summer 2008.  I was waiting for better light in the late afternoon when I spotted 2 Sandhill Cranes out in Gibbons Meadows.  I walked out to the river and was photographing the adult and juvenile cranes when 4 large bull bison started moving my way.  2 of the bison stopped and rolled in the very fine white dust, got up and shook it off.  Normally high bright light and very windy conditions do not make for a good photo but in this case the conditions were perfect.  C Thomas Hoff.