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The Grand Canyon [a] is a steep-sided canyon carved by the Colorado River in Arizona, United States.The Grand Canyon is 277 miles (446 km) long, up to 18 miles (29 km) wide and attains a depth of over a mile (6,093 feet or 1,857 meters).
Location: Coconino and Mohave counties, Arizona, United States: Nearest city: Fredonia, Arizona (North Rim) Tusayan, Arizona (South Rim): Coordinates: 2]: Area: 1,217,262 acres (4,926.08 km 2) [3]: Established: January 11, 1908 () as a national monument February 26, 1919 () as a national park: Visitors: 4,733,705 (in 2023) [4]: Governing body: National Park Service: Website: nps.gov /grca ...
The resulting Grand Canyon Supergroup of sedimentary units is composed of nine varied geologic formations that were laid down from 1.2 billion and 740 million years ago in this sea. [11] Good exposures of the supergroup can be seen in eastern Grand Canyon in the Inner Gorge and from Desert View, Lipan Point and Moran point. [12] [note 1]
Desert View Watchtower, also known as the Indian Watchtower at Desert View, is a 70-foot (21 m)-high stone building located on the South Rim of the Grand Canyon within Grand Canyon National Park in Arizona, United States.
The first Europeans reached the Grand Canyon in September 1540. [1] It was a group of about 13 Spanish soldiers led by García López de Cárdenas, dispatched from the army of Francisco Vásquez de Coronado on its quest to find the fabulous Seven Cities of Gold.
When Fletcher conducted the trip in 1963, the National Park did not encompass the entire length of the canyon, the park was later expanded to include the entire Canyon. The first person to walk the entire length of the Grand Canyon was Kenton Grua in 1977. He was inspired by Fletcher's book but set out to "do it right" by walking from end to ...
In 1962, they were renamed The Grand Canyon Caverns. During the 1962 Cuban Missile Crisis, the U.S. government designated the caverns as a fallout shelter, with supplies for 2,000 people. These supplies remain in the caverns. [3] In 1979, a cosmic ray telescope was installed at Grand Canyon Caverns, 126 feet (38 m) below the surface. [4]
R.T. Evans, 1957. Clarence Dutton started the tradition of naming features in the Grand Canyon after mythological deities and heroic figures. [4] King Arthur Castle was named in 1902 by Richard Tranter Evans (1881–1966), a cartographer who was mapping the Grand Canyon in the early 1900s, after the legendary fortress Camelot of the Legend of King Arthur, in keeping with his naming theme for ...