Rocky Mountains

Table of Contents

References & Edit History Quick Facts & Related Topics

Images & Videos

map of western North America

Beartooth Mountains, Montana

Columbia Icefield

Wind River Range

Uncompahgre River

Canyonlands National Park

great horned owl

For Students

The Rocky Mountains at Whistler, B.C., Can.

Rocky Mountains summary

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Bear Hat Mountain above Hidden Lake on a crest of the Continental Divide in Glacier National Park, Montana

Exploring 7 of Earth’s Great Mountain Ranges

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Hemp (Cannabis sativa).

9 Mind-Altering Plants

Groups of depositors in front of the closed American Union Bank, New York City. April 26, 1932. Great Depression run on bank crowd

Causes of the Great Depression

Ruminant. Deer. Red deer. Cervus elaphus. Buck. Stag. Antlers.

9 of the World’s Deadliest Mammals

After a perfect launch, spectators try to catch a last glimpse of Space Shuttle Columbia, barely visible at the top end of the twisted column of smoke.

7 Accidents and Disasters in Spaceflight History

Moonrise over Tucson, Arizona

Why Doesn’t Arizona Observe Daylight Saving Time?

Close up of periodic table, focus on nickel, copper, zinc, palladium, silver, cadmium

When Was the Periodic Table Invented?

Hindu Holi Festival celebrations with colored water, powder and colorful flower petals thrown over celebrants at a Hindu temple in Mathura, Uttar Pradesh, India on March 24, 2021.

Holi: Festival of Colors

Rocky Mountains: Facts & Related Content

Written and fact-checked by The Information Architects of Encyclopaedia Britannica

News •

What to know about Hollywood icon Gene Hackman's and his wife's deaths • Mar. 7, 2025, 7:56 PM ET (AP)

For Gene Hackman, Santa Fe was a refuge from the limelight • Mar. 1, 2025, 4:06 PM ET (AP)

Gene Hackman and his wife tested negative for carbon monoxide, sheriff says • Feb. 28, 2025, 8:35 PM ET (AP)

Oscar-winner Gene Hackman, wife Betsy Arakawa and their dog were dead for some time, warrant shows • Feb. 28, 2025, 1:53 AM ET (AP)

'Life-threatening cold' hits parts of US following deadly weekend flooding • Feb. 17, 2025, 11:04 PM ET (AP)

Did You Know?

The Rocky Mountain National Park is six times bigger in area than Washington, D.C.
In 2017, more people visited the Rocky Mountains than resided in Los Angeles.

Photos and Videos

map of western North America

Beartooth Mountains, Montana

Columbia Icefield

Wind River Range

Uncompahgre River

Canyonlands National Park

great horned owl

Behold near-boiling water spurting from geysers and hot springs in Wyoming's Yellowstone National Park

Explore the United States' Mountain region and its diverse landscape, rivers, and settlement

Explore the Rocky Mountains, Colorado Plateau, Grand Canyon, and Sonoran Desert in the U.S. Southwest

See All Videos and Images →

Topics

Appalachian Mountains Sierra Nevada Pocono Mountains Cascade Range Ozark Mountains Blue Ridge Catskill Mountains Black Hills Adirondack Mountains Great Smoky Mountains

Quiz

Blue Ridge Mountains. Blue Ridge Parkway. Autumn in the Appalachian Mountains in North Carolina, United States. Appalachian Highlands, Ridge and Valley, The Appalachian Mountain system

All About Mountains Quiz