What was the first national park established in the United States, a landmark in the nation’s history before America250?

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Yellowstone National Park was the first national park established in the United States.

President Ulysses S. Grant signed the Yellowstone National Park Protection Act on March 1, 1872. The law set aside more than two million acres in the territories of Montana and Wyoming as a public park for the benefit and enjoyment of the people.

Yellowstone is famous for geothermal features including Old Faithful, hot springs, mudpots, and the Grand Prismatic Spring. Its landscape also includes the Yellowstone Caldera, one of the largest active volcanic systems in North America. The park’s wildlife includes bison, elk, grizzly bears, and wolves.

Yellowstone is often described as the world’s first national park, although the exact meaning of “national park” varies among countries. It was not the first protected landscape of any kind. Its creation helped establish a model later used for national parks across the United States and internationally.

Source: Wikipedia · fact-checked Oct. 2026

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