Know Before You Go

America's Southwest Canyons Trivia

Do you know the age of the oldest rocks found in the Grand Canyon? Any idea which national park once held the largest sand dunes ever known on Earth, or where you'll find the world's largest collection of hoodoos? Take our quiz below to put your knowledge to the test, then share it with your family and friends to see who knows the most about the history and geology of America's canyonlands! When you're finished, scroll down to reveal the correct answers and explanations.

Answer Explanations:

Know Before You Go

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