You are viewing a single comment's thread from:RE: 7 World’s Continents Photo Challenge - North American Friday week #28 - the absolute winner takes 200 SBD!View the full contextjacksartori (60)in #travel • 7 years ago It was a beautiful sunny day, the air was fresh and the bisons were grazing on the grasslands of Yellowstone national park. What you see is not snow but salt. When I saw it I didn't believe it, I must say that it was really amazing.