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: 19693
A rainbow appears in the mist of the Lower Falls of the Yellowstone River. At 308 feet, the Lower Falls of the Yellowstone River is the tallest fall in the park. This view is from Lookout Point on the North side of the Grand Canyon of the Yellowstone. When conditions are perfect in midsummer, a midmorning rainbow briefly appears in the falls.
Location: Grand Canyon of the Yellowstone, Yellowstone National Park, Wyoming
Image ID: 13319
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: 26096
Yosemite Falls reflected in flooded meadow. The Merced River floods its banks in spring, forming beautiful reflections of Yosemite Falls.
Location: Yosemite National Park, California
Image ID: 26887
Panorama dimensions: 5256 x 11469