Grand Canyon

The Grand Canyon is a steep-sided canyon carved by the Colorado River in the U.S. state of Arizona. It is one of the most famous natural landmarks in the world.

Geology

The canyon is up to about 1.8 kilometres deep and reveals rock layers spanning nearly two billion years of Earth's history, exposed by millions of years of erosion.

Tourism

It is a national park visited by millions each year for its dramatic scenery, hiking and rafting.

Frequently asked questions

Where is the Grand Canyon?

In Arizona, United States.

What carved the Grand Canyon?

The Colorado River, over millions of years.