How to use "evergreens" in a sentence

The evergreens - pine, spruce, fir, tamarack - were flocked with snow

The chopper hugged the valley floor, streaking northward, ten feet above an ice-blocked river, still forced to make its way through a snowfall that nearly blinded them, but sheltered from the worst of the storm's turbulence by the walls of mammoth evergreens that flanked the river