The bisons massive head is its most characteristic feature. Its forehead bulges because of its convex-shaped frontal bone. Its shoulder hump, dwindling bowlike to the haunches, is supported by unusually long spinal vertebrae. Over powerful neck and shoulder muscles grows a great shaggy coat of curly brown fur, and over the head, like an immense hood, grows a shock of black hair. Its forequarters are higher and much heavier than its haunches. A mature bull stands about 6 1/2 feet (2 meters) at the shoulder and weighs more than 2,000 pounds (900 kilograms). The bisons horns are short and black. In the male they are thick at the base and taper abruptly to sharp points as they curve outward and upward; the females horns are more slender.
Species: American bison, Bison bison
Location: Yellowstone National Park, Wyoming
Image ID: 13120
A rainbow appears in the spray of Riverside Geyser as it erupts over the Firehole River. Riverside is a very predictable geyser. Its eruptions last 30 minutes, reach heights of 75 feet and are usually spaced about 6 hours apart. Upper Geyser Basin.
Location: Upper Geyser Basin, Yellowstone National Park, Wyoming
Image ID: 13367
Delicate Arch, dusted with snow, at sunset, with the snow-covered La Sal mountains in the distance. Delicate Arch stands 45 feet high, with a span of 33 feet, atop of bowl of slickrock sandstone.
Location: Delicate Arch, Arches National Park, Utah
Image ID: 18104
Male elk bugling during the fall rut. Large male elk are known as bulls. Male elk have large antlers which are shed each year. Male elk engage in competitive mating behaviors during the rut, including posturing, antler wrestling and bugling, a loud series of screams which is intended to establish dominance over other males and attract females.
Species: Elk, Cervus canadensis
Location: Madison River, Yellowstone National Park, Wyoming
Image ID: 19697
Male elk bugling during the fall rut. Large male elk are known as bulls. Male elk have large antlers which are shed each year. Male elk engage in competitive mating behaviors during the rut, including posturing, antler wrestling and bugling, a loud series of screams which is intended to establish dominance over other males and attract females.
Species: Elk, Cervus canadensis
Location: Mammoth Hot Springs, Yellowstone National Park, Wyoming
Image ID: 19698
Elk, bull elk, adult male elk with large set of antlers. By September, this bull elk's antlers have reached their full size and the velvet has fallen off. This bull elk has sparred with other bulls for access to herds of females in estrous and ready to mate.
Species: Elk, Cervus canadensis
Location: Mammoth Hot Springs, Yellowstone National Park, Wyoming
Image ID: 19721
Panorama of the Wave. The Wave is a sweeping, dramatic display of eroded sandstone, forged by eons of water and wind erosion, laying bare striations formed from compacted sand dunes over millenia. This panoramic picture is formed from thirteen individual photographs.
Location: North Coyote Buttes, Paria Canyon-Vermilion Cliffs Wilderness, Arizona
Image ID: 20700
Panorama dimensions: 4661 x 25458
The Virgin River flows by autumn cottonwood trees, part of the Virgin River Narrows. This is a fantastic hike in fall with the comfortable temperatures, beautiful fall colors and light crowds.
Location: Virgin River Narrows, Zion National Park, Utah
Image ID: 26098
Water rushes through a narrow crack, in the red sandstone of Zion National Park, with fallen autumn leaves.
Location: Zion National Park, Utah
Image ID: 26100
Sunset and boulders, Joshua Tree National Park. Sunset lights the giant boulders and rock formations near Jumbo Rocks in Joshua Tree N.P.
Location: Joshua Tree National Park, California
Image ID: 26719
Panorama dimensions: 5493 x 10035
Light Beam in Upper Antelope Slot Canyon. Thin shafts of light briefly penetrate the convoluted narrows of Upper Antelope Slot Canyon, sending piercing beams through the sandstone maze to the sand floor below.
Location: Navajo Tribal Lands, Page, Arizona
Image ID: 28561
Stone Steps Beach at Sunset, Aerial Panorama, Encinitas, California.
Location: Encinitas, California
Image ID: 37945
Panorama dimensions: 6681 x 15401
Molly's Castle, aerial view, Goblin Valley State Park. Curtis Formation whiteish caprock is on top, with reddish Entrada Sandstone below, both of Jurassic era. Molly's castle lies in the San Rafael desert near Goblin Valley, and drains into the Colorado River watershed. Aerial panoramic photograph.
Location: Goblin Valley State Park, Utah
Image ID: 37950
Fisher Towers at sunset, near Moab, Utah. Fisher Towers are a series of towers made of Cutler sandstone capped with Moenkopi sandstone and caked with a stucco of red mud located near Moab, Utah.
Location: Fisher Towers, Moab, Utah
Image ID: 38225
Milky Way and Stars over Broken Arch, Arches National Park, Utah.
Location: Broken Arch, Arches National Park, Utah
Image ID: 29237
Panorama dimensions: 5882 x 15117
Broken Hill and view to La Jolla, panoramic photograph, from Torrey Pines State Reserve, sunrise.
Location: Torrey Pines State Reserve, San Diego, California
Image ID: 30469
Panorama dimensions: 6212 x 12960
Sunrise Clouds and Surf, Hospital Point, La Jolla.
Location: La Jolla, California
Image ID: 28830
Lower Antelope Canyon, a deep, narrow and spectacular slot canyon lying on Navajo Tribal lands near Page, Arizona.
Location: Navajo Tribal Lands, Page, Arizona
Image ID: 26628
Lower Antelope Canyon, a deep, narrow and spectacular slot canyon lying on Navajo Tribal lands near Page, Arizona.
Location: Navajo Tribal Lands, Page, Arizona
Image ID: 28559
Radio Tower Rock at Sunset, Page, Arizona.
Location: Page, Arizona
Image ID: 36023
A hiker admiring the striated walls and dramatic light within Antelope Canyon, a deep narrow slot canyon formed by water and wind erosion.
Location: Navajo Tribal Lands, Page, Arizona
Image ID: 18009
Belt of Venus over Horseshoe Bend on the Colorado River. The Colorado River makes a 180-degree turn at Horseshoe Bend. Here the river has eroded the Navajo sandstone for eons, digging a canyon 1100-feet deep. The Belt of Venus, or anti-twilight arch, is the shadow of the earth cast upon the atmosphere just above the horizon, and occurs a few minutes before sunrise or after sunset.
Location: Page, Arizona
Image ID: 37781
Panorama dimensions: 5719 x 8788
Milky Way and Stars through Wilson Arch. Wilson Arch rises high above route 191 in eastern Utah, with a span of 91 feet and a height of 46 feet.
Location: Wilson Arch, Moab, Utah
Image ID: 29275