There are two national parks in the Greater Yellowstone Ecosystem: Yellowstone National Park and Grand Teton National Park.
Grand Teton National Park
Yellowstone National Park is considered the heart of the ecosystem.
The National Park is known for its hydrothermal features, wildlife, hikes, lakes, and scenic views.
The area is home to an estimated 5,000 American bison.
Millions experience this pristine ecosystem annually. Yellowstone and Grand Teton National Parks together hosted over 6 million people last year.