Grand Canyon: Top Photos

Two billion years of Earth's history cut open by a river

The Grand Canyon is a steep-sided canyon carved by the Colorado River in the United States in the state of Arizona. The Grand Canyon is 277 miles (446 km) long, up to 18 miles (29 km) wide and attains
The Grand Canyon is a steep-sided canyon carved by the Colorado River in the United States in the state of Arizona. The Grand Canyon is 277 miles (446 km) long, up to 18 miles (29 km) wide and… © Ken Lund from Reno, Nevada, USA, CC BY-SA 2.0, via Wikimedia Commons

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