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Groups of people have been waiting to watch, experience and photograph this Old Faithful eruption just after sunset on a sunny early autumn day.
Tourists gather to watch as Old Faithful geyser in Yellowstone National Park erupts forcing out boiling water and steam from the bedrock below.
Hot spring explosion. Old Faithful Geyser, Yellowstone National Park, Wyoming, USA
Old Faithful erupts into the blue sky on a winter day in Yellowstone National Park of Wyoming.
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Geyser Spraying Against Cloudy Sky
Old Faithful Geyser erupting on a sunny day with blue sky. Geothermal activity in the Yellowstone National Park, Wyoming, USA. Volcanic landscape on a sunny day
hiking in yellowstone national park - cody, wy - usa
Old Faithful geyser erupts at Yellowstone National Park as a young bison grazes nearby. The famous geyser erupts at an average interval of 90 mins, expelling up to 8,400 gallons of boiling water at up to 184 feet high.
Long exposure of the erupting geyer old faithful
Old Faithful is a cone geyser located in state of Wyoming, Yellowstone National Park in the United States. It is erupting on average every ninety minutes. Full rainbow appeared when the rainstorm passed by.
Most popular geyser in the world, the Old Faithful geyser in the Yellowstone National Park. USA.
A bison is standing on grass in front of Old Faithful during its eruption at Yellowstone National Park when sun setting
Crowd enjoying the famous Old Faithful geyser eruption in Yellowstone National Park, Wyoming
Yellowstone National Park
Panoramic photograph of the famous Castle Geyser with eruption and rainbow in the Upper Geyser Basin of Yellowstone national park, Wyoming, United States of America, USA.
A Crowd of People Watching Old Faithful Geyser Erupt in Yellowstone National Park on an Overcast Day
Subject: The Old Faithful Geyser in Yellowstone National Park. The geyser exhibit the spray Eruption once an hour, a famous tourist attraction in the park. Photographed in horizontal format.
The most famous hot spring in the World, Grand Prismatic Spring, viewed from the fairy falls trail in Yellowstone National Park
Old Faithful thermal features in black and white
'Old Faithful' geyser reaching for the sky in full force in Yellowstone National Park, State of Wyoming, United States of America.
Old Faithful Geyser, Yellowstone national Park, Wyoming, USA
Old Faithful Geyser eruption with people watching. Geothermal activity in Yellowstone National Park
Yellowstone National Park, Wyoming, USA: Old Faithful is a cone geyser located in Yellowstone National Park, Wyoming, renowned for its relatively predictable eruption pattern that occurs approximately every 90 minutes, though intervals can range from 60 to 110 minutes depending on the duration of the previous eruption. The geyser shoots a column of boiling water to heights averaging 130-140 feet (40-43 meters), with eruptions lasting between 1.5 to 5 minutes and expelling 3,700 to 8,400 gallons (14,000 to 32,000 liters) of water. Named during the 1870 Washburn Expedition for its consistent activity, Old Faithful is powered by underground thermal features where superheated water under pressure periodically flashes to steam, creating the eruption cycle. As one of more than 500 geysers in Yellowstone—which contains over half of the world's geysers—Old Faithful has been erupting in its current pattern for hundreds of years, making it one of the park's most studied and visited thermal features, with its activity carefully monitored and predicted by the National Park Service based on the duration and strength of each eruption.
Castle Geyser erupting with rainbow, Yellowstone national park, Wyoming, USA.
Tourists gather to watch Old Faithful erupt in Yellow stone National Park, Wyoming, USA.
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Scenic view of the Old Faithful Geyser eurpting with jets of boiling water and clouds of steam. No people.
Old Faithful in Yellowstone National Park exploding steam during sunrise.
Geyser in Yellowstone, Old Faithful
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