Trunk of trembling Aspen tree Populus tremuloides in Grand Teton National Park Wyoming in winter

trunk; Stand; forest; Trembling; Aspen; trees; Populus tremuloides; Grand Teton; National Park; Wyoming; winter; American Aspen; Quaking Aspen; Trembling Aspen; Golden Aspen; Mountain Aspen; Poplar; snow; snowing; snowfall; storm; cold; trunks; tree; bark; black; knots; scars