Yellowstone National Park

A brown bear walking across a field with tall grass and purple flowers under a clear sky.

Brown Bear foraging at Sizzling Basin, Yellowstone National Park

An emerald-green river flows through a canyon lined with yellow rock and evergreen trees.

Yellowstone River, Bumpus Butte, and Calcite Springs in Yellowstone National Park

A waterfall cascading down a rocky mountain side into a stream surrounded by trees and rocks.

Undine Falls in Lava Creek Canyon, Yellowstone National Park

A cluster of geysers and hot springs is visible in a grassy area with trees in the background.

Lion Group of geysers in Yellowstone National Park

White travertine deposit around Grand Geyser, Yellowstone National Park

A circular, orange hot spring rests on a vast white and grey landscape, with a forest visible in the distance.

Chromatic Pool in Yellowstone National Park

A steaming, bubbling hot spring surrounded by trees and rocks.

Punch Bowl Spring in Yellowstone National Park

A geothermal area contains cracked earth, steam vents, and pools of water tinted with yellow and brown.

Daisy Group of geysers in Yellowstone National Park

A geyser erupting from the ground in an open field, with mountains and trees in the background.

Round Spring Group in Yellowstone National Park

Lesser fringed gentian flowers in Black Sand Basin

An aquamarine pool is surrounded by white sand and low green vegetation.

Mirror Pool in Yellowstone National Park

Grand Prismatic Spring at Yellowstone National Park

An erupting geyser emits steam into the air, surrounded by trees and rock formations.

Giant Group of geysers in Yellowstone National Park

Scalloped Spring and Firehole River in Yellowstone National Park

A pool of water is colored yellow and blue, surrounded by white mineral deposits on its edges.

Three Sisters Springs in Yellowstone National Park

A large geyser erupts in the middle of a rocky landscape surrounded by trees.

Lone Star Geyser in Yellowstone National Park

A herd of bison standing and grazing on a grassy riverbank with trees and mountains in the background.

Yellowstone Park bison herd grazing at Firehole River in Fountain Flats

Mud Geyser in Yellowstone National Park

A large, shallow pool of water with visible ripples and steam rising from it. Tall trees surround the pool.

Black Dragon's Caldron and Sour Lake in Yellowstone National Park

A wooden bridge over a rocky stream, with steam rising from a geothermal vent nearby and trees on the hillside in the background.

Sizzling Basin and Churning Caldron in Yellowstone National Park

Mud Caldron in Yellowstone National Park

A murky body of water has a rippled surface that appears to be disturbed, likely due to strong currents or turbulent movement beneath the surface.

Turbulent Pool in Yellowstone National Park

Blue Funnel Spring at the West Thumb of Yellowstone Lake

A large rock formation juts out into a calm body of water under a partly cloudy sky.

Big Cone Geyser at the West Thumb of Yellowstone Lake