Within Yellowstone's 2.2 million acres, visitors have unparalleled opportunities to observe wildlife in an intact ecosystem, explore geothermal areas that contain about half the world’s active geysers, and view geologic wonders like the Grand Canyon of the Yellowstone River.

Yellowstone National Park is a national park of the United States located in the northwest corner of Wyoming and extending into Montana and Idaho. It was established by the 42nd U.S. Congress through the Yellowstone National Park Protection Act and signed into law by President Ulysses S. Grant on March 1, 1872.

Yellowstone National Park covers nearly 3,500 square miles in the northwest corner of Wyoming (3% of the park is in Montana and 1% is in Idaho). Yellowstone has five entrance stations, and several are closed to regular vehicles during winter.

Jan 30, 2025 · Yellowstone National Park, the oldest, one of the largest, and probably the best-known national park in the United States. It is situated principally in northwestern Wyoming and partly in southern Montana and eastern Idaho and includes the greatest concentration of hydrothermal features in the world.

Nov 19, 2024 · A portal for information relevant to anyone planning a trip to Yellowstone, including directions, weather, fees, and more.

Yellowstone National Park was established as the world’s first national park on March 1, 1872 and encompasses 2.2 million acres. The park was established for many reasons including the abundance of wildlife and more geysers, hot springs, and geothermal features than anywhere else in the world. Just as the landscape and wildlife are part of ...

Sep 1, 2019 · Best things to do in Yellowstone National Park. How to plan your time, best time of year to visit, map, photos, updated for 2025.

Apr 12, 2019 · Everything to know about Yellowstone National Park. Here’s what to see and do in the world’s first national park.

Yellowstone National Park is a wonderland of geothermal activity, stunning landscapes, and abundant wildlife. Steam hisses out of the ground along walking trails, bison stop cars in their tracks on the main park road, and technicolor hot springs never fail to amaze even the most seasoned traveler.

Visit Yellowstone and experience the world's first national park. Marvel at a volcano’s hidden power rising up in colorful hot springs, mudpots, and geysers. Explore mountains, forests, and lakes to watch wildlife and witness the drama of the natural world unfold.