Grand Canyon Facts

Q: Which major river carved the Grand Canyon over an estimated span of 5 to 6 million years?

Answer this question in the quiz to reveal the explanation.

Q: Approximately how long is the Grand Canyon from end to end following the river channel?

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Q: Which one-armed Civil War veteran led the first recorded scientific expedition down the Colorado River in 1869?

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Q: What ancient, dark crystalline rock formation exposed at the bottom of the Inner Gorge dates back roughly 1.7 to 1.8 billion years?

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Q: Which conservation-minded US President declared the Grand Canyon a National Monument in 1908 before Congress designated it a National Park in 1919?

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Q: Which Native American tribe inhabits the canyon floor at Supai, the only US community where mail is still delivered daily by pack mule?

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Q: What glass-bottom cantilever attraction opened in 2007 on Hualapai tribal land, projecting 70 feet out over a 4,000-foot drop?

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Q: What famous geological mystery in the Grand Canyon involves over one billion years of missing rock layers between the Vishnu Schist and Tapeats Sandstone?

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Q: Why does the North Rim of the Grand Canyon close to vehicular traffic for the entire winter while the South Rim stays open year-round?

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Q: Which historic, rustic lodge designed by architect Mary Colter in 1922 is the only permanent lodging located below the Grand Canyon rim?

Answer this question in the quiz to reveal the explanation.

Question 1

Which major river carved the Grand Canyon over an estimated span of 5 to 6 million years?

Question 2

Approximately how long is the Grand Canyon from end to end following the river channel?

Question 3

Which one-armed Civil War veteran led the first recorded scientific expedition down the Colorado River in 1869?

Question 4

What ancient, dark crystalline rock formation exposed at the bottom of the Inner Gorge dates back roughly 1.7 to 1.8 billion years?

Question 5

Which conservation-minded US President declared the Grand Canyon a National Monument in 1908 before Congress designated it a National Park in 1919?

Question 6

Which Native American tribe inhabits the canyon floor at Supai, the only US community where mail is still delivered daily by pack mule?

Question 7

What glass-bottom cantilever attraction opened in 2007 on Hualapai tribal land, projecting 70 feet out over a 4,000-foot drop?

Question 8

What famous geological mystery in the Grand Canyon involves over one billion years of missing rock layers between the Vishnu Schist and Tapeats Sandstone?

Question 9

Why does the North Rim of the Grand Canyon close to vehicular traffic for the entire winter while the South Rim stays open year-round?

Question 10

Which historic, rustic lodge designed by architect Mary Colter in 1922 is the only permanent lodging located below the Grand Canyon rim?

Which major river carved the Grand Canyon over an estimated span of 5 to 6 million years?

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