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Posted on Aug 16, 2025 / Travel

• Yellowstone is the first national park in the world, established in 1872.
• Old Faithful erupts roughly every 90 minutes, though the exact timing varies.
• The park sits atop a supervolcano, which is closely monitored for volcanic activity.
• Yellowstone contains over 10,000 geothermal features, including geysers, hot springs, and mud pots.
• The park is home to the largest concentration of mammals in the lower 48 states, including bison and grizzly bears.
• Yellowstone Lake is the largest high-altitude lake in North America, covering 136 square miles.
• The Grand Prismatic Spring displays vibrant colors caused by heat-loving microbes.
• More than 3 million people visit Yellowstone each year, making it one of the most popular national parks in the U.S.

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