Old Faithful geyser. Reaching up to 185' in height and lasting up to 5 minutes, Old Faithful geyser is the most famous geyser in the world and the first geyser in Yellowstone to be named.
Location: Upper Geyser Basin, Yellowstone National Park, Wyoming
Image ID: 26945
A giant sequoia tree, soars skyward from the forest floor, lit by the morning sun and surrounded by other sequioas. The massive trunk characteristic of sequoia trees is apparent, as is the crown of foliage starting high above the base of the tree.
Species: Giant sequoia tree, Sequoiadendron giganteum
Location: Mariposa Grove, Yosemite National Park, California
Image ID: 23259
Glacial erratic boulders atop Olmsted Point, with the massive granite monoliths Half Dome and Clouds Rest in the background. Erratics are huge boulders left behind by the passing of glaciers which carved the granite surroundings into their present-day form. When the glaciers melt, any boulders and other geologic material that it was carrying are left in place, sometimes many miles from their original location.
Location: Yosemite National Park, California
Image ID: 23264
A giant sequoia tree, soars skyward from the forest floor, lit by the morning sun and surrounded by other sequioas. The massive trunk characteristic of sequoia trees is apparent, as is the crown of foliage starting high above the base of the tree.
Species: Giant sequoia tree, Sequoiadendron giganteum
Location: Mariposa Grove, Yosemite National Park, California
Image ID: 23273
Vernal Falls at peak flow in late spring. Hikers are seen at the precipice to Vernal Falls, having hiked up the Mist Trail to get there.
Location: Vernal Falls, Yosemite National Park, California
Image ID: 12636
Fern Springs, a small natural spring in Yosemite Valley near the Pohono Bridge, trickles quietly over rocks as it flows into the Merced River.
Location: Fern Springs, Yosemite National Park, California
Image ID: 12650
Bull elk, antlers bearing velvet, Gibbon Meadow. Elk are the most abundant large mammal found in Yellowstone National Park. More than 30,000 elk from 8 different herds summer in Yellowstone and approximately 15,000 to 22,000 winter in the park. Bulls grow antlers annually from the time they are nearly one year old. When mature, a bulls rack may have 6 to 8 points or tines on each side and weigh more than 30 pounds. The antlers are shed in March or April and begin regrowing in May, when the bony growth is nourished by blood vessels and covered by furry-looking velvet.
Species: Elk, Cervus canadensis
Location: Gibbon Meadows, Yellowstone National Park, Wyoming
Image ID: 13154
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 the famous and popular Artist Point on the south side of the Grand Canyon of the Yellowstone. When conditions are perfect in midsummer, a morning rainbow briefly appears in the falls.
Location: Grand Canyon of the Yellowstone, Yellowstone National Park, Wyoming
Image ID: 13329
Morning Glory Pool has long been considered a must-see site in Yellowstone. At one time a road brought visitors to its brink. Over the years they threw coins, bottles and trash in the pool, reducing its flow and causing the red and orange bacteria to creep in from its edge, replacing the blue bacteria that thrive in the hotter water at the center of the pool. The pool is now accessed only by a foot path. Upper Geyser Basin.
Location: Upper Geyser Basin, Yellowstone National Park, Wyoming
Image ID: 13352
Crested Pool is a blue, superheated pool. Unfortunately, it has claimed a life. It reaches a overflowing boiling state every few minutes, then subsides a bit before building to a boil and overflow again. Upper Geyser Basin.
Location: Upper Geyser Basin, Yellowstone National Park, Wyoming
Image ID: 13355
Riverside Geyser at peak eruption, arcing 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: 13366
A visitor videotapes the eruption of Lion Geyser, with Old Faithful Inn visible in the distance. Lion Geyser, whose eruption is preceded by a release of steam that sounds like a lion roaring, erupts just once or a few times each day, reaching heights of up to 90 feet. Upper Geyser Basin.
Location: Upper Geyser Basin, Yellowstone National Park, Wyoming
Image ID: 13371
Daisy Geyser erupting with visitors visible in the distance.. Daisy Geyser, a cone-type geyser that shoots out of the ground diagonally, is predictable with intervals ranging from 120 to over 200 minutes. It reaches heights of 75 feet, lasts 3 to 4 minutes and rarely erupts in concert with nearby Splendid Geyser. Upper Geyser Basin.
Location: Upper Geyser Basin, Yellowstone National Park, Wyoming
Image ID: 13382
Sawmill Geyser erupting. Sawmill Geyser is a fountain-type geyser and, in some circumstances, can be erupting about one-third of the time up to heights of 35 feet. Upper Geyser Basin.
Location: Upper Geyser Basin, Yellowstone National Park, Wyoming
Image ID: 13385