Aspen leaf turning red, orange, and yellow, Uncompahgre National Forest, Colorado, United States of America, North America

Aspen leaf turning red and orange on a lichen-covered rock, Uncompahgre National Forest, Colorado, United States of America, North America

Aspen leaf turning red and orange, Uncompahgre National Forest, Colorado, United States of America, North America

Red aspen leaf with water drops, near Telluride, Colorado, United States of America, North America

Barn near Aspen, Rocky Mountains, Colorado, USA, North America, America

Cross Country Skiing Along The Russian River To Aspen Flats Cabin, Kenai Mountains Peninsula, Southcentral Alaska, Alaska, United States Of America

Cross Country Skiing Along The Russian River To Aspen Flats Cabin, Kenai Mountains Peninsula, Southcentral Alaska, Alaska, United States Of America

Colorado, Near Steamboat Springs, Autumn aspen trees on Buffalo Pass.

Hiker in Aspen forest in autumn, Jasper National Park, Alberta

Man looks out over a mature harvest ready soybean field with aspen trees in the background, near Lorette, Manitoba

Vivid autumn foliage colour on maple and aspen tree leaves, seen from above, Wasatch Mountains, Utah, USA

A trail through the woods. Vivid autumn foliage colour on maple and aspen tree 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 Kolob Terrace and aspen trees in the Dixie national forest, Dixie National Forest, Utah, United States

Fall colours in the Wasatch Mountains, aspen trees with pale bark and straight trunks, Wasatch Mountains, Utah, USA

A trail through the woods. Vivid autumn foliage colour on maple and aspen tree leaves, Wasatch Mountains, Utah, USA

Maple and aspen trees in the national forest of the Wasatch mountains. White bark and slender tree trunks, Wasatch National Forest, Utah, USA

Aspen and maple trees in the fall, 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

Snow on autumn on the foliage and branches of aspen trees in a national forest, Uinta Mountains, Utah, USA

A forest of aspen trees in the Wasatch mountains, with striking yellow and red autumn foliage, Wasatch Mountains, Utah, USA

A forest of aspen and maple trees in the Wasatch mountains, with striking yellow and red autumn foliage, Wasatch Mountains, Utah, USA