Which was the world's first national park, covering over 3,400 square miles?

Yellowstone National Park is recognized as the world's first national park, designated in 1872. It spans over 3,400 square miles and is located primarily in the U.S. state of Wyoming, although it also extends into Montana and Idaho. Yellowstone is renowned for its stunning geothermal features, diverse ecosystems, and abundant wildlife, making it a significant natural heritage site. The establishment of Yellowstone set a precedent for the conservation movement and the creation of national parks around the world, aiming to preserve the beauty and ecological integrity of large natural areas for future generations. Its title as the first national park underscores its pioneering role in the conservation of natural spaces and the promotion of outdoor recreation.