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Dec 2, 2009 · Getty Images / Dean Fikar. The Grand Canyon is a mile-deep gorge in northern Arizona. Scientists estimate the canyon may have formed 5 to 6 million years ago when the Colorado River began to...
May 17, 2024 · Grand Canyon, Arizona, U.S., designated a World Heritage site in 1979. The Grand Canyon lies in the southwestern portion of the Colorado Plateau, which occupies a large area of the southwestern United States and consists essentially of horizontal layered rocks and lava flows.
- The Editors of Encyclopaedia Britannica
The Grand Canyon is part of the Colorado River basin, which has developed over the past 70 million years. [7] [20] Over more than 150 years, scientists have gathered data, proposed new ideas, and debated sometimes contentious theories about the geologic origins of the Grand Canyon and the Colorado River.
The known human history of the Grand Canyon area stretches back 10,500 years, when the first evidence of human presence in the area is found. Native Americans have inhabited the Grand Canyon and the area now covered by Grand Canyon National Park for at least the last 4,000 of those years.
Feb 14, 2022 · Learn how people have lived in and explored Grand Canyon for thousands of years, from ancient Native Americans to European American settlers. Discover the park's interpretive themes, places, collections, and preservation efforts.
The Grand Canyon was designated a World Heritage Site by UNESCO in 1979. The park celebrated its 100th anniversary on February 26, 2019. [6] History. 1938 poster of the park. The Grand Canyon became well known to Americans in the 1880s after railroads were built and pioneers developed infrastructure and early tourism. [7] .
1540. The first Europeans to see Grand Canyon were soldiers led by García López de Cárdenas. In 1540, Francisco Vázquez de Coronado and his Spanish army traveled northward from Mexico City in search of the Seven Cities of Cíbola. After traveling for six months, Coronado’s army arrived at the Hopi Mesas, east of Grand Canyon.
