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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).
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]
On February 26, 2019, the Grand Canyon National Park commemorated 100 years since its designation as a national park. [15] The Grand Canyon had been part of the National Park Service's Intermountain Region until 2018. [citation needed] Today, the Grand Canyon is a part of Region 8, also known as the Lower Colorado Basin. [16]
Vulcan's Throne is a cinder cone volcano and a prominent landmark on the North Rim of the Grand Canyon in Arizona, United States. [4] The volcano is adjacent the Colorado River, (thousands of feet above the river) as it is the source material for Lava Falls and Lava Falls Rapids (Vulcan Rapids) one of the largest rapids of the Colorado.
The Grand Canyon Supergroup is a Mesoproterozoic to a Neoproterozoic sequence of sedimentary strata, partially exposed in the eastern Grand Canyon of Arizona. This group comprises the Unkar Group , Nankoweap Formation , Chuar Group and the Sixtymile Formation , which overlie Vishnu Basement Rocks .
Horseshoe Bend is located 5 miles (8 km) downstream from the Glen Canyon Dam and Lake Powell within Glen Canyon National Recreation Area, about 4 miles (6 km) southwest of Page. [ 1 ] [ 3 ] It is accessible via hiking a 1.5-mile (2.4 km) round trip from a parking area just off U.S. Route 89 within southwestern Page. [ 1 ]
The plateau is bounded on the south by the Grand Canyon of the Colorado River, the elevation in this southern area of the plateau varies from 8,800 feet (2,700 m) to slightly less than 6,000 feet (1,800 m). The most extensive platform of the plateau is the Esplanade, which is called "Sand Rocks" by local cowboys.
Aerial overview, westward. Scorpion Ridge has the common sequence of rock layers of the Grand Canyon. Because of the landform's shape and position, broad colorful dull-greenish slope-forming slopes of Bright Angel Shale surround the landform, ending at short platform cliffs of Tapeats Sandstone, upon Granite Gorge and the Vishnu Basement Rocks.
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