Yellowstone first National Park (1872)
established by the Forty-Second U.S. Congress and signed into law by President Ulysses S. Grant on March 1, 1872 the first national park in the world 1,221,773 acres U.S. National Park
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established by the Forty-Second U.S. Congress and signed into law by President Ulysses S. Grant on March 1, 1872 the first national park in the world 1,221,773 acres U.S. National Park