the best science on the web about
canyons

Canyon
Image: National Geographic/Sam Barberie

Canyon

Formed by flowing rivers, weathering and erosion, and the interior movement of Earth itself, canyons make dramatic slices into the landscape — and under the oceans.

Discover how canyons grand and narrow take shape over thousands or millions of years and what they reveal to scientific study.

National Geographic
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Canyons: Photo Gallery

Canyons: Photo Gallery

Take a look at stunning pictures showing common and unique features of canyons. More...

Images
National Geographic
How the Grand Canyon Formed

How the Grand Canyon Formed

Travel to the Grand Canyon to witness flash floods and other forces that have been at work for more than five million years. More...

Video
BBC
Bryce Canyon National Park Photos

Bryce Canyon National Park Photos

Bryce Canyon in Utah offers spectacularly stunning scenery. Take a look at photos and videos of some. More...

Images
Utah.com
Canyon

Canyon

Deep gashes on the face of our planet, wide or narrow, canyons take many shapes. Learn about the diversity of these steep-sided valleys. More...

Article
Science Clarified
Grand Canyon May Be 60 Million Years Older than Previously Thought

Grand Canyon May Be 60 Million Years Older than Previously Thought

Well-known, but still mysterious, the Grand Canyon’s formation may date to the time of the dinosaurs. Take a look at the ongoing debate over its age. More...

Video
PBS NewsHour
Grand Canyon Quiz

Grand Canyon Quiz

From how was it formed to how many miles deep is it, these 10 questions will show what you know about the Grand Canyon. More...

Interactive
FactMonster.com
How Old Is the Grand Canyon?

How Old Is the Grand Canyon?

Canyons are never carved quickly. Research how geologists work to find the birth date of the Grand Canyon. More...

Article
FactMonster.com
How the Earth Was Made

How the Earth Was Made

Watch how two opposing forces — erosion and uplift — created the Grand Canyon and its spectacular surroundings. More...

Video
History Channel
Origin of the Rock Layers of the Grand Canyon

Origin of the Rock Layers of the Grand Canyon

Billions of years ago, before the Colorado River carved the Grand Canyon, shallow seas covered a thick layer of sediment. Watch how time, heat, and pressure formed those rocks. More...

Video
Caltech

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