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Photo: Lennart Sikkema, Wikimedia Commons, CC BY 3.0.
Quiz · 10 questions

How well do you know the Grand Canyon?

by @voturquiz, Votur Quiz
10 questionsabout 3 minwith explanations

Test your knowledge of America's most famous natural wonder! Explore the geologic mysteries, hidden human history, and cultural impact of the massive gorge carved by the Colorado River.

Raft Rookie 0–4 · Trail Regular 5–8 · Canyon Master 9–10

Which iconic 1991 road movie famously climaxes with a car chase ending at a canyon that stood in for the Grand Canyon?

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A: Thelma & Louise

The dramatic final scene of the classic movie 'Thelma & Louise' shows the duo driving their 1966 Thunderbird off a cliff. Although the film sets the scene at the Grand Canyon, it was actually filmed at Dead Horse Point State Park in Utah, which offers a similarly spectacular gorge view.

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What is the maximum width of the Grand Canyon from rim to rim?

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B: 18 miles

At its widest point, the Grand Canyon measures about 18 miles across, though the average width is closer to 10 miles. At its narrowest point in Marble Canyon, the rim-to-rim distance is only about 600 feet. Walking across the canyon on foot requires a grueling hike of over 20 miles along the trails.

Photo: Lennart Sikkema, Wikimedia Commons, CC BY 3.0.

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How long ago did the Colorado River begin carving the Grand Canyon into its modern shape?

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B: About 6 million years ago

Some of the rock layers deep in the canyon are almost two billion years old, but the Colorado River only began cutting its path through them about 5 to 6 million years ago. Wetter ice-age weather then sped up the work, and by about 1.2 million years ago the canyon was already nearly as deep as it is today.

Photo: U.S. Department of the Interior National Park Service Natural Resource Stewardsh, Wikimedia Commons, Public domain.

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Which Native American tribe has resided inside the Grand Canyon for centuries, living in the isolated Supai Village?

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B: Havasupai

The Havasupai, whose name translates to 'people of the blue-green water,' have inhabited the Grand Canyon region for over 800 years. They are famous for their stewardship of the stunning turquoise waterfalls, such as Havasu Falls, located on their reservation land near the national park.

Photo: Grand Canyon NPS, Wikimedia Commons, CC BY 2.0.

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Which is the only community located entirely inside the Grand Canyon, where mail is still delivered by mule train?

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A: Supai

Supai is the capital of the Havasupai Indian Reservation and lies at the bottom of the canyon. Because there are no roads leading to the village, the U.S. Postal Service still uses mule trains to deliver mail, food, and supplies to the residents. It is one of the most remote communities in the continental United States.

Photo: Elf, Wikimedia Commons, CC BY-SA 3.0.

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Which pioneering female architect designed the iconic Desert View Watchtower and Hopi House at the Grand Canyon?

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B: Mary Colter

Mary Colter was a visionary architect who designed many of the Grand Canyon's most famous historic buildings and made them blend beautifully into the landscape. Her Watchtower, Hopi House and Bright Angel Lodge helped inspire the rustic style later seen in national parks all over America.

Photo: Unknown author, Wikimedia Commons, Public domain.

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Which historic steel arch bridge, completed in 1929 near Lees Ferry, allowed vehicles to cross the Colorado River?

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B: Navajo Bridge

Completed in 1929, the Navajo Bridge was a major engineering feat that spared travelers an arduous detour or risky ferry crossing. Today, the original bridge is a pedestrian walkway, while a newer parallel bridge handles modern vehicle traffic. It is also a famous spot for viewing endangered California condors.

Photo: User Leonard G. on en.wikipedia, Wikimedia Commons, CC SA 1.0.

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Who was the first European explorer known to have viewed the Grand Canyon, arriving there in 1540?

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B: García López de Cárdenas

García López de Cárdenas, a Spanish conquistador, was the first European to lay eyes on the canyon. He was dispatched by expedition leader Coronado to search for a rumored great river. Cárdenas and his men spent several days trying to descend to the Colorado River but failed due to dehydration and the sheer scale of the cliffs.

Photo: Augusto Ferrer-Dalmau Nieto, Wikimedia Commons, CC BY-SA 4.0.

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Which nearby coal-fired power plant, closed in 2019, was long criticized for causing haze over the Grand Canyon?

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A: Navajo Generating Station

The Navajo Generating Station, located near Page, Arizona, was one of the largest coal plants in the West. For decades, environmentalists blamed its emissions for reducing visibility and creating winter haze in the Grand Canyon. Its closure in 2019 marked a major milestone for regional air quality.

Photo: This Photo was taken by Wolfgang Moroder. Feel free to use my photos, but please, Wikimedia Commons, CC BY-SA 3.0.

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Which US president officially signed the bill designating the Grand Canyon as a National Park in 1919?

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A: Woodrow Wilson

Although Theodore Roosevelt loved the Grand Canyon and declared it a National Monument in 1908 to protect it from mining, he could not get Congress to approve park status. It was Woodrow Wilson who finally signed the official bill making it a National Park on February 26, 1919, ensuring its long-term federal protection.

Photo: Murray Foubister, Wikimedia Commons, CC BY-SA 2.0.

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How well do you know the Grand Canyon?
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