Rocky Mountain bull elk bugling during the rutting or mating season - its breath hanging in the frosty morning air.
Autumn in American Fork Canyon, Utah
A patchwork of autumn colors in a conifer and aspen forest
Bear pond aerial in Wasatch-Cache National Forest of Utah in autumn
Close-up of three yellow aspen leaves, in their autumn colors, backlighted against the blue sky
Autumn cottonwood trees in Antelope Flats - Grand Teton National Park. This is the Narrowleaf Cottonwood (Populus angustifolia).
Autumn foothills under the Grand Tetons - Grand Teton National Park
Autumn cottonwood trees under the Grand Tetons in Grand Teton National Park
Aerial patterns in Alaska's Tongass National Forest - near Juneau, Alaska
Autumn cottonwood trees under the Grand Tetons in Grand Teton National Park
Autumn cottonwood trees under the Grand Tetons in Grand Teton National Park
Autumn cottonwood trees under the Grand Tetons in Grand Teton National Park
See photo in original gallery.