Your Guide to the National Parks

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National Parks
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Top 5 Parks by Popularity

Yosemite

Rocky Mountian

The United States has 62 protected areas known as national parks that are operated by the National Park Service, an agency of the Department of the Interior. National parks must be established by an act of the United States Congress. The first national park, Yellowstone, was signed into law by President Ulysses S. Grant in 1872.