Yellowstone

Yellowstone National Park

On March 1, 1872, Yellowstone became the first national park for all to enjoy the unique hydrothermal wonders. Today, millions of people come here each year to camp, hike, and enjoy the majesty of the park.

Grand Prismatic Spring

The bright colors found in Grand Prismatic Spring come from thermophiles—microorganisms that thrive in hot temperatures

Brilliant blues and greens of a hot spring ringed by oranges, yellows, reds, and browns.

Aurum Geyser

Aurum Geyser erupting

A crowd of people standing along a wooden boardwalk watches a geyser erupt.

Black Pool

Black Pool at the West Thumb Geyser Basin

A visitor stands on a boardwalk near a hot spring and a lake.

Beehive Geyser

Visitors to the Upper Geyser Basin watch Beehive Geyser erupt.

People on a wooden boardwalk watch a geyser erupt.

Wolf howling

Alpha male of the Canyon wolf pack

A wolf howls while standing on a snowy field.

Fishing Bridge Trailside Museum

The stone-and-log architecture of Fishing Bridge Trailside Museum became a prototype for park buildings all around the country

Visitors walk into a rustic, log and stone building.

Great Fountain Geyser

Great Fountain Geyser erupts against a blue summer sky

A geyser erupting in the middle of a large pool.

Old Faithful Geyser in winter

Winter is a magical time to watch Old Faithful Geyser erupt

A crowd in front of an erupting geyser during a snowy winter day.

Palette Spring

The vibrant colors of Palette Springs are formed by thermophiles—heat-loving organisms

Visitors walk in front of a brightly colored, terraced landscape.

Bighorn sheep

Two bighorn rams rest and chew their cud

Lower Falls from Artist Point

A river plunges into a steep, barren canyon.

Bison herd in a thermal area

Bison near Mud Volcano

A herd of bison grazing through a barren and steaming thermal area.

Grizzly bear

Grizzly bear in the woods

Yellowstone River

The Yellowstone River near Tower Fall

A greenish river meanders through a hilly river valley.