10Yellowstone National Park, Wyoming, Montana, and Idaho
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Yellowstone, established in 1872, is America’s first national park and remains one of the most iconic. It’s a landscape of stunning diversity, featuring geothermal wonders like Old Faithful and the vibrant Grand Prismatic Spring. Covering over 2 million acres, Yellowstone is home to a rich variety of wildlife, including bison, elk, and grizzly bears. With its geysers, hot springs, waterfalls, and forested valleys, Yellowstone offers visitors a glimpse into the world’s largest active geothermal system.