Yellow aspens in the fall, Uncompahgre National Forest, Colorado, United States of America, North America

Quaking aspen (Populus tremuloides) in autumn s, Wyoming, USA

Gorgeous professional weed (Erigeron speciosus) Aspen professional weed, flower, North America, Germany, Europe

Backlit quaking aspen trees (Populus tremuloides) in Telluride, Colorado.

Evidence of a beaver at work on Trembling Aspen tree, Assiniboine Park, Winnipeg, Manitoba

The Wasatch Mountain forest of maple and aspen trees, with autumn foliage and fallen leaves, Wasatch Mountains, Utah, USA

The Dixie national forest with aspen trees in autumn. White bark and yellow foliage on the branches and fallen to the ground, Dixie National Forest, Utah, USA

The Dixie national forest with aspen trees in autumn. White bark and yellow foliage on the branches and fallen to the ground, Dixie National Forest, Utah, USA