National Geographic presents The Grand Canyon sponsored by Nature Valley

Growing along desert slopes, the claret cup is one of many cactus species found in the Grand Canyon.

Photograph courtesy U.S. National Park Service

	Grand Canyon Skywalk Video Watch this un-narrated video and see what it's like to stand 4,000 feet above the Grand Canyon's floor. Watch Video			Giant Screen Film Watch a preview of the spectacular film, Grand Canyon: The Hidden Secrets. Learn More

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