Yellowstone National Park

Where Earth Comes Alive

Established in 1872 as the world's first national park, Yellowstone protects 2.2 million acres of geothermal wonders, wildlife habitat, and dramatic landscapes. The park features over half of the world's geothermal features, including the iconic Old Faithful geyser.

Beyond its famous geysers, the park is home to diverse wildlife including grizzly bears, wolves, and the largest wild bison herd in North America. The Grand Canyon of the Yellowstone and vast wilderness areas showcase the park's dramatic geological history.

Quick Facts

Location

Wyoming, Montana, Idaho

Established

1872

Size

2.2 million acres

Annual Visitors

~4 million

Geysers

500+

Best Time to Visit

May to October

Park Highlights

Old Faithful

Famous geyser.

Grand Canyon

Dramatic canyon.

Mammoth Hot Springs

Terraced springs.

Lamar Valley

Wildlife watching.

Grand Prismatic

Colorful spring.

Yellowstone Lake

Alpine lake.

Popular Activities

  • Hiking
  • Camping
  • Wildlife viewing
  • Photography
  • Winter activities
  • Fishing
  • Horseback riding
  • Bus tours

Essential Information

Weather & Climate

Extreme variations. Check conditions.

Lodging & Camping

Multiple options. View accommodations.

Wildlife Safety

Keep safe distance. Follow guidelines.

Transportation

Personal vehicle or tours. Seasonal roads.

Accessibility

Many accessible facilities. View the accessibility guide.

Getting There

Five entrance stations.

Plan Your Visit

The park is open year-round. Summer is busiest; winter offers unique experiences.

Multiple visitor centers provide orientation. Ranger programs offered year-round.

Entrance fees required. Advance reservations recommended. Wildlife and thermal area safety essential.