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.
- Country
- United States of America
- Region
- North America
- Category
- Natural
- Inscribed
- 1978
- UNESCO reference
- 28
- Area
- 898,349 ha
View the official UNESCO listing
Counts are based on Zikzak's current UNESCO World Heritage dataset, sourced from UNESCO. Last updated 7 August 2026. UNESCO insights