What is the Grand Canyon?

Answer 1

The Grand Canyon is an enormous gorge -- over 200 miles long -- of the Colorado River situated in northwest Arizona. It was carved over millions of years by erosion from the Colorado River and its tributaries, exposing many layers of rock and nearly 2 billion years of Earth's geologic history. It's a breathtaking site that attracts many tourists every year.

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Answer 2

Grand Canyon National Park, a World Heritage Site, encompasses 1,218,375 acres and lies on the Colorado Plateau in northwestern Arizona. The land is semi-arid and consists of raised plateaus and structural basins typical of the southwestern United States.