Castle Geyser erupts with the colorful bacteria mats of Tortoise Shell Spring in the foreground. Castle Geyser reaches 60 to 90 feet in height and lasts 20 minutes. While Castle Geyser has a 12 foot sinter cone that took 5,000 to 15,000 years to form, it is in fact situated atop geyserite terraces that themselves may have taken 200,000 years to form, making it likely the oldest active geyser in the park. Upper Geyser Basin.
Location: Upper Geyser Basin, Yellowstone National Park, Wyoming
Image ID: 13444
Great Fountain Geyser erupting. Great Fountain Geyser, a fountain-type geyser, can reach heights of 200 feet, one of the largest geysers in the world. It has a large vent (16 feet across) situated amid wide sinter terraces that act as reflecting pools as the geyser slows fills prior to its eruption. Its interval and duration vary widely. It typically erupts in a series of bursts, each separately by a few minutes. Firehole Lake Drive.
Location: Lower Geyser Basin, Yellowstone National Park, Wyoming
Image ID: 13556
Great Fountain Geyser erupting. Great Fountain Geyser, a fountain-type geyser, can reach heights of 200 feet, one of the largest geysers in the world. It has a large vent (16 feet across) situated amid wide sinter terraces that act as reflecting pools as the geyser slows fills prior to its eruption. Its interval and duration vary widely. It typically erupts in a series of bursts, each separately by a few minutes. Firehole Lake Drive.
Location: Lower Geyser Basin, Yellowstone National Park, Wyoming
Image ID: 13557
Great Fountain Geyser erupting. Great Fountain Geyser, a fountain-type geyser, can reach heights of 200 feet, one of the largest geysers in the world. It has a large vent (16 feet across) situated amid wide sinter terraces that act as reflecting pools as the geyser slows fills prior to its eruption. Its interval and duration vary widely. It typically erupts in a series of bursts, each separately by a few minutes. Firehole Lake Drive.
Location: Lower Geyser Basin, Yellowstone National Park, Wyoming
Image ID: 13558
Great Fountain Geyser erupting. Great Fountain Geyser, a fountain-type geyser, can reach heights of 200 feet, one of the largest geysers in the world. It has a large vent (16 feet across) situated amid wide sinter terraces that act as reflecting pools as the geyser slows fills prior to its eruption. Its interval and duration vary widely. It typically erupts in a series of bursts, each separately by a few minutes. Firehole Lake Drive.
Location: Lower Geyser Basin, Yellowstone National Park, Wyoming
Image ID: 13559
Great Fountain Geyser erupting. Great Fountain Geyser, a fountain-type geyser, can reach heights of 200 feet, one of the largest geysers in the world. It has a large vent (16 feet across) situated amid wide sinter terraces that act as reflecting pools as the geyser slows fills prior to its eruption. Its interval and duration vary widely. It typically erupts in a series of bursts, each separately by a few minutes. Firehole Lake Drive.
Location: Lower Geyser Basin, Yellowstone National Park, Wyoming
Image ID: 13560
Great Fountains large vent (16 feet across) sits amid wide sinter terraces that act as reflecting pools as the geyser slows fills prior to its eruption. Firehole Lake Drive.
Location: Lower Geyser Basin, Yellowstone National Park, Wyoming
Image ID: 13561
Great Fountains large vent (16 feet across) sits amid wide sinter terraces that act as reflecting pools as the geyser slows fills prior to its eruption. Firehole Lake Drive.
Location: Lower Geyser Basin, Yellowstone National Park, Wyoming
Image ID: 13562
Great Fountain Geyser erupting. Great Fountain Geyser, a fountain-type geyser, can reach heights of 200 feet, one of the largest geysers in the world. It has a large vent (16 feet across) situated amid wide sinter terraces that act as reflecting pools as the geyser slows fills prior to its eruption. Its interval and duration vary widely. It typically erupts in a series of bursts, each separately by a few minutes. Firehole Lake Drive.
Location: Lower Geyser Basin, Yellowstone National Park, Wyoming
Image ID: 13563
Dead trees embedded in calcium carbonate deposits in the travertine terraces of Mammoth Hot Springs, near Minerva terrace . Over two tons of calcium carbonate (in solution) is deposited each day on the terraces, gradually killing any vegetation that had managed to be growing.
Location: Mammoth Hot Springs, Yellowstone National Park, Wyoming
Image ID: 19795
Dead trees embedded in calcium carbonate deposits in the travertine terraces of Mammoth Hot Springs, near Minerva terrace . Over two tons of calcium carbonate (in solution) is deposited each day on the terraces, gradually killing any vegetation that had managed to be growing.
Location: Mammoth Hot Springs, Yellowstone National Park, Wyoming
Image ID: 19796
Dead trees embedded in calcium carbonate deposits in the travertine terraces of Mammoth Hot Springs, near Minerva terrace . Over two tons of calcium carbonate (in solution) is deposited each day on the terraces, gradually killing any vegetation that had managed to be growing.
Location: Mammoth Hot Springs, Yellowstone National Park, Wyoming
Image ID: 19797
Dead trees embedded in calcium carbonate deposits in the travertine terraces of Mammoth Hot Springs, near Minerva terrace . Over two tons of calcium carbonate (in solution) is deposited each day on the terraces, gradually killing any vegetation that had managed to be growing.
Location: Mammoth Hot Springs, Yellowstone National Park, Wyoming
Image ID: 19798