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March 20, 2007: People take the first official walk on the Skywalk, billed as the first-ever cantilever-shaped glass walkway extending 70 feet from the western Grand Canyon's rim more than 4,000 feet above the Colorado River.{ }(Courtesy: Getty/David McNew)
Grand Canyon National Park, located in northwestern Arizona, is the 15th site in the United States to have been named a national park. (Courtesy: Getty/Paul Harris)
Photo of Devils Tower National Monument, in 1966. (Courtesy: Getty/Smith Collection/Gado)
Tourists visit the Grand Canyon at sunrise on February 22, 2025.(Courtesy: Getty/Brandon Bell)
A postcard featuring of the Grand Canyon from the Union Pacific lodge in Bright Angel Point, Arizona, 1922. (Courtesy: Getty/ Smith Collection/Gado)
President Theodore Roosevelt designated 18 sites as national monuments. (Courtesy: Getty/ Fotosearch)
This 1965 photo captures the Grand Canyon at dawn. (Courtesy: Getty/Ernst Haas/Ernst Haas)
The Grand Canyon has been home to Indigenous peoples for {strong}more than 12,000 years. (Courtesy: Getty/Bettmann){/strong}
GRAND CANYON, AZ - MARCH 20:  Hualapai tribal dancers gather for opening ceremonies for the first official walk of the Skywalk on March 20, 2007. (Courtesy: Getty/David McNew)

118 Years of the grandest of canyons

March 20, 2007: People take the first official walk on the Skywalk, billed as the first-ever cantilever-shaped glass walkway extending 70 feet from the western Grand Canyon's rim more than 4,000 feet above the Colorado River.{ }(Courtesy: Getty/David McNew)