Yellowstone National Park


World Heritage Identification Number: 28

World Heritage since: 1978

Category: Natural Heritage

Transboundary Heritage: No

Endangered Heritage: No

Country: 🇺🇸 United States of America

Continent: Americas

UNESCO World Region: Europe and North America

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A Comprehensive Overview of Yellowstone National Park: America's First and Largest National Park

Yellowstone National Park, located primarily in the U.S. state of Wyoming, is a testament to the breathtaking beauty and diverse ecosystems that define North America. Established in 1872, it holds the distinction of being the world's first national park, setting a precedent for preserving pristine wilderness areas for future generations.

The park spans nearly 9,000 square kilometers, making it one of the largest protected areas in the contiguous United States. Its boundaries extend slightly into the neighboring states of Montana and Idaho, but the majority of the park lies within Wyoming. This expansive territory encompasses a wide range of habitats, from extensive subalpine forests and open meadows to towering mountain ranges and steaming geothermal landscapes.

One of the most striking features of Yellowstone is its abundance of geothermal activity. More than half of the world's known geothermal features can be found here, with over 10,000 examples scattered throughout the park. These include hot springs, mud pots, and the famous geysers, of which there are more than 500. Among these, Old Faithful Geyser remains the most iconic. While often thought to erupt hourly, its current average interval is approximately 90 to 94 minutes, with individual gaps ranging from 54 to 120 minutes.

In addition to its geothermal wonders, Yellowstone is renowned for its rich and varied wildlife. The park is home to numerous large mammals, including grizzly bears, wolves, bison, and elk, as well as smaller creatures like coyotes, beavers, and black bears. The park's diverse ecosystem supports a vibrant food chain, allowing visitors to witness the intricate balance between predator and prey.

The vegetation within Yellowstone is equally diverse, with subalpine forest being the most prevalent. This unique ecosystem is characterized by coniferous trees like whitebark pine, Engelmann spruce, and Douglas fir. The park's varied topography also supports other biomes, such as grasslands, wetlands, and alpine tundra.

Yellowstone National Park continues to see high visitor numbers, with over 4.5 million recreation visits in recent years, making it one of the most visited national parks in the United States. Visitors can explore the Visitors can explore the park’s many trails on foot or horseback, enjoy cycling on park roads, take guided tours, or simply enjoy scenic drives through this magnificent landscape. The park's visitor centers provide valuable information about the area's geology, wildlife, and history, ensuring that visitors leave with a deeper appreciation for the park's natural and cultural significance, including a long history of Indigenous presence.

In summary, Yellowstone National Park stands as a testament to the beauty and diversity of North American ecosystems. With its vast geothermal landscapes, rich wildlife, and stunning vistas, it remains a must-visit destination for nature enthusiasts and casual travelers alike. As the world's first national park, it continues to inspire conservation efforts and serve as a model for preserving our planet's most precious wild places.

UNESCO Description of the World Heritage Site

The vast natural forest of Yellowstone National Park covers nearly 9,000 km2 ; 96% of the park lies in Wyoming, 3% in Montana and 1% in Idaho. Yellowstone contains half of all the world's known geothermal features, with more than 10,000 examples. It also has the world's largest concentration of geysers (more than 300 geyers, or two thirds of all those on the planet). Established in 1872, Yellowstone is equally known for its wildlife, such as grizzly bears, wolves, bison and wapitis.

Encyclopedia Record: Yellowstone National Park

Yellowstone National Park is a national park of the United States located in the northwest corner of the state of Wyoming, with small portions 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 was the first national park in the US, and is also widely understood to be the first national park in the world. The park is known for its wildlife and its many geothermal features, especially the Old Faithful geyser, one of its most popular. While it represents many types of biomes, subalpine forest is the most abundant. It is part of the South Central Rockies forests ecoregion.

Read more on Wikipedia

Additional Site Details

Area: 898,349 hectares

UNESCO Criteria: (vii) — Contains superlative natural phenomena or beauty
(viii) — Outstanding example representing major earth stages
(ix) — Outstanding example representing ecological and biological processes
(x) — Contains most important habitats for biodiversity

Coordinates: 44.46056 , -110.82778

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Image of Yellowstone National Park

© Chris Light, CC BY-SA 4.0 Resized from original. (This derivative is under the same CC BY-SA license.)

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Country Information: United States of America

Flag of United States of America

Official Name: United States of America

Capital: Washington, D.C.

Continent: Americas

Population (2024): 340,110,988

Population (2023): 336,806,231

Population (2022): 334,017,321

Land Area: 9,147,420 sq km

Currency: United States dollar (USD)

Country Data Sources

Last updated: January 18, 2026

Portions of the page Yellowstone National Park are based on data from UNESCO — World Heritage List Dataset and on text from the Wikipedia article Yellowstone National Park, licensed under CC BY-SA 4.0. Changes made. Additional original content by World Heritage Explorer (WHE), licensed under CC BY-SA 4.0. WHE is not affiliated with UNESCO or the World Heritage Committee. Legal Notice. Privacy Policy.

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