Twenty-eight million acres of irreplaceable habitats that support one of the largest intact collection of wildlife and animal species in the lower 48 United States. Contact Us

While millions of acres within the Greater Yellowstone are protected through park, national forests and wildlife refuge status, the areas of greatest biological importance, about 10% or 2.8 million acres, are not protected. These areas are the crucial winter feed grounds that are necessary for the survival of species such as elk and pronghorn. What’s our vision for Greater Yellowstone? 

Where Are We?

Spanning within the boundaries of three states in the heart of America’s Rocky Mountains, Greater Yellowstone is visited each year by millions of people from around the world.
Where is Greater Yellowstone?

Fast Facts
 The headwaters of all three of the nation’s largest watersheds–
    the Columbia, the Colorado and the Mississippi–begin here.

 Location of the five longest remaining long-distance mammal
    migrations in the lower 48 United States.

 Habitat for large concentrations of elk, mule deer, bighorn
   mountain sheep, bison, and pronghorn, and the southern anchor
   of a larger system for wide-ranging carnivores that are critical
   to the natural balance: wolves, grizzly bears, coyotes,
   wolverine mountain lions, lynx, and fox.

What else makes Greater Yellowstone so precious?
Learn more fast facts.

What's New

20th Anniversary of catastrophic fires forces
a look forward.

A new threat looms in Yellowstone.

Twenty years after a fire charred nearly 40% of Yellowstone, the national park has bounced back. NBC Nightly News' Anne Thompson talks with the Conservancy's Paul Hansen.

Since the foundation of Yellowstone National Park in 1872, protected areas have been an essential tool for conserving nature and the natural resources on which people depend. Go deeper to see how the Conservancy is working to help parks under pressure around the world.

Safeguarding Historic
Pitchfork Ranch