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Black Butte volcanic cinder cone presents a stark contrast to surrounding fall color. Mount Shasta, California, USA
Fall Color Foliage Hits Colorado
Pagosa Peak 12,640 feet in the Weminuche Wilderness Area of the San Juan National Forest.
Elk Mountain View in Autumn - Scenic fall foliage and views of Mount Sopris and other peaks in the West Elk Mountains near Aspen and Glenwood Springs, Colorado USA.
The Quaking Aspen (Populus tremuloides) gets its name from the way the leaves quake in the wind. The aspens grow in large colonies, often starting from a single seedling and spreading underground only to sprout another tree nearby. For this reason, it is considered to be one of the largest single organisms in nature. During the spring and summer, the aspens use sunlight and chlorophyll to create food necessary for the tree’s growth. In the fall, as the days get shorter and colder, the naturally green chlorophyll breaks down and the leaves stop producing food. Other pigments are now visible, causing the leaves to take on beautiful orange and gold colors. These colors can vary from year to year depending on weather conditions. For instance, when autumn is warm and rainy, the leaves are less colorful. This fall scene of gold colored aspens was photographed at Hart Prairie in the Coconino National Forest near Flagstaff, Arizona, USA. Kendrick Peak (10,423 feet) is in the background.
Pike's Peak and autumn in Colorado
Fall colors near Fish Lake near Richfield Utah, USA photographed along FR-036 Freemont River Road.
Autumn colors in western Montana near Idaho. Trees of orange and gold. Nearest communities is West Yellowstone, Montana in western USA.
Fall colors in the trees on the high plains of Arizona, USA
Kebler Pass in Autumn, Colorado, USA
A scenic view of the San Francisco Peaks and aspen trees that surround Lockett Meadow in Arizona, USA
Fall Autumn Colors Around Telluride
Highway lined with Aspen in their golden fall colors and tall fir and pine trees, in the Dixie National forest, Utah, USA. In an aspen grove the different tress are actually all clones from a single root system, making the Quivering aspen the largest single living organism.
Grasslands occupy one-third of Arizona, taking up some 24 million acres.  They provide a unique habitat for wildlife and are part of a large and diverse network of grasslands found throughout the southwestern U.S. and northern Mexico. Semi-desert grasslands found in central and southeastern Arizona reach into Sonora, Mexico and New Mexico. Grasslands in Northern Arizona are similar to those found in the Great Basin and the Colorado Plateau in Colorado, Utah and New Mexico. In the mountainous areas of Northern Arizona, grassland meadows can be found interspersed within the conifer forests.  Hart Prairie is a vast grassland located on the northwest side of the San Francisco Peaks.  At 12,637 feet above sea level, Humphrey's Peak dominates the landscape above the prairie.  Hart Prairie is in the Coconino National Forest near Flagstaff, Arizona, USA.
Green and gold landscape with distant mountains and wispy cloudy sky in Carson National Forest, north of Taos, NM,
The changing colors of the aspens among a forest of evergreen trees in the upper elevations of the Rocky Mountains near Telluride, Colorado.
Fresh snow on the San Francisco Peaks mountain range in Flagstaff, Arizona.
Fall Foliage at Red Mountain Pass, Colorado, USA
Quaking aspens in golden yellow autumn colors against a blue sky in the Tonto National Forest near Flagstaff Arizona.
Autumn leaf colors in Colorado
Autumn scenery of 318 in the southern Sichuan-Tibet line of China
Aspen area rough narrow mountain road to old mill.
Albuquerque, New Mexico and Colorado
Aspens changing in Colorado with Spinney reservoir Mt Princton and Mt Harvard in the distence
A scenic view of a mountain range covered with vibrant autumn woods. Lockett Meadow, Arizona
A view of Mount Charleston, Nevada
A mixed forest of Aspen, fir and pine trees in the Dixie national forest on the high altitudes of the Aquarius Plateau, Utah, USA, on a sunny autumn day. This forest includes Quivering aspen, Populus tremuloides, Ponderose Pine,  Pinus ponderosa, and Douglas firs, Pseudotsuga menziesii,
The Quaking Aspen (Populus tremuloides) gets its name from the way the leaves quake in the wind. The aspens grow in large colonies, often starting from a single seedling and spreading underground only to sprout another tree nearby. For this reason, it is considered to be one of the largest single organisms in nature. During the spring and summer, the aspens use sunlight and chlorophyll to create food necessary for the tree’s growth.  In the fall, as the days get shorter and colder, the naturally green chlorophyll breaks down and the leaves stop producing food.  Other pigments are now visible, causing the leaves to take on beautiful orange and gold colors.  These colors can vary from year to year depending on weather conditions.  For instance, when autumn is warm and rainy, the leaves are less colorful. This aspen grove was photographed along the Arizona Trail near Bismarck Lake in the Coconino National Forest near Flagstaff, Arizona, USA.
Colorado Rockies In the Fall in Durango, CO, United States
Meadow of Scenic Aspens During Fall - Autumn leaf color in scenic mountain aspen forest.
Free Images: "bestof:Fall color peaking on the north side of the San Francisco Peaks, October 5, 2016. This drive takes you around the north side of Arizona's highest mountain,"
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