5 Oldest National Parks in the United States

1. Yellowstone National Park

Date Established as Park: March 1, 1872

Yellowstone National Park tops our list of the 20 oldest national parks in the United States. It is also widely regarded as the oldest natural park in the world. Located mainly in the northwest corner of Wyoming and extending into Montana and Idaho, Yellowstone National Park is a unique national park that offers a myriad of marvels, ranging from the impressive Yellowstone Grand Canyon to a diverse array of wildlife, including buffalos, grizzly bears, and wolves.

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