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West Yellowstone, Montana
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Old Faithful, located in the Upper Geyser Basin, is renowned for its highly predictable eruptions, which occur approximately every 90 minutes.
The Upper Geyser Basin contains the largest concentration of geysers in the world, with over 150 active geysers.
This basin is one of several geothermal areas in Yellowstone National Park, which sits atop a supervolcano.
The vivid colors in the hot springs are due to thermophilic bacteria that thrive in the extreme heat, creating a spectrum of colors from blue to orange.
Visitors often spot bison, elk, and even grizzly bears in the area, as the basin's geothermal features provide a unique habitat.
Some of the geysers have been active for thousands of years, with Old Faithful's eruptions documented since the late 1800s.
While the basin is open throughout the year, winter access is limited to snowmobiles and snowcoaches, offering a unique way to experience the geothermal wonders.
