Frost forms in on the pine needles in the extreme cold of Yellowstone National Park.
The constant winter wind over Dream Lake sculpts and shapes the snow and ice on the lake. Rocky Mountain National Park, Colorado.
As I approached Emerald Lake the wind was so strong I had to kneel behind a snow drift to prevent blowing snow from covering my lens. This is the veiw just prior to Emerald Lake in Rocky Mountain National Park, Colorado.