America's Living Natural History Museum

On March 1, 1872, Yellowstone became the first national park for all to enjoy the unique hydrothermal wonders. As development spread across the West, the 2.2 million acres of habitat within the park became an important sanctuary for the largest concentration of wildlife in the lower 48 states.

 
 
Bison grazing in the grassy areas around a hot spring with snow covering part of the ground.

Greater Yellowstone Ecosystem

Yellowstone is the heart of one of the largest, nearly intact temperate-zones on Earth.

Soldiers on horseback drill on an open area with people viewing from a building in the background.

Park History

The U.S. Army managed the park from 1886 through 1918.

 

Visit Yellowstone

An amazing experience awaits you here. Yellowstone is a seasonal park, so plan your visit by learning about the current conditions, operating seasons and hours, road conditions, lodging and eating options, and available activities.

 
People walk along a boardwalk that goes through the a bare landscape covered in parts by water.

Things To Do

Explore all the different things there are to do in the park.

Old Faithful Geyser

Webcams

Watch Old Faithful erupt or see the Upper Geyser Basin, Mount Washburn, Yellowstone Lake, and some of the park entrances.

Four people sitting in campsite in front of a fire laughing and smiling.

Camp in a Campground

Plan a night in one of twelve park campgrounds.

A person looks through a camera with a large zoom lens at a bear in the distance

Watch Wildlife

Bring binoculars or a spotting scope and enjoy watching animals from a safe distance.

Yellowstone's app running on a tablet

Digital Guide to Yellowstone

Geyser predictions, interactive maps, self-guided tours, current conditions, and more. Download the official, free app today!

 

Understand Yellowstone

Yellowstone is as wondrous as it is complex. The park is at the heart of the Greater Yellowstone Ecosystem, where nature and culture abound. Here are just a few highlights for you to learn about the park.

 
The head of a brown spotted snake among grass

Reptiles

There are six reptile species in Yellowstone.

A large group of people stand in front of a teepee in a historical black & white photo.

Kids: History

For thousands of years before Yellowstone became a national park, it was a place where Native Americans seasonally lived.

Three uniformed people working around excavated dirt. Two stand by wooden boxes; one uses a shovel.

Archeology

Archeological resources are the primary and often only source about humans in Yellowstone.

Close-up of petrified wood.

Fossils

Fossil of plants, invertebrates, vertebrates, and trace fossils found within Yellowstone document 540 million years of life.

Water flows over the Brink of Lower Falls in the Grand Canyon of the Yellwostone

Water

Learn about the role of water in Yellowstone and beyond.

 

Preserve Yellowstone

The National Park Service works to preserve Yellowstone for the enjoyment, education, and inspiration of all people. We are not alone in this endeavor-park partners, volunteers, and visitors all help. Learn how to get involved.

 
The bottom of Osprey Falls

Water Conservation

The water that flows through Yellowstone National Park is a vital national resource.

Photo of ranger deploying bear spray.

Bear Spray

Learn about this highly effective bear deterrent.

Photo of a park employee cleaning a boat with a power washer.

Clean, Drain, and Dry

Protect park waters by preventing the spread of aquatic invasive species.

Last updated: August 1, 2019

Contact the Park

Mailing Address:

PO Box 168
Yellowstone National Park, WY 82190-0168

Phone:

307-344-7381

Contact Us