'Fog Crystals', or Hoar Frost rock formations, Cuillin Hills, Isle of Skye, Scotland, 20th century. Winter at 3000 feet above sea level, when surface hoar covers sloping snowbanks, the layer of frost crystals may create an avalanche risk.
'Fog Crystals', or Hoar Frost rock formations, Cuillin Hills, Isle of Skye, Scotland, 20th century. Winter at 3000 feet above sea level, when surface hoar covers sloping snowbanks, the layer of frost crystals may create an avalanche risk.
