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Glen Canyon Dam is a concrete arch-gravity dam in the southwestern United States, located on the Colorado River in northern Arizona, near the city of Page.The 710-foot-high (220 m) dam was built by the Bureau of Reclamation (USBR) from 1956 to 1966 and forms Lake Powell, one of the largest man-made reservoirs in the U.S. with a capacity of more than 25 million acre-feet (31 km 3). [4]
Glen Canyon Dam, which creates Lake Powell, is situated in the town of Page in northern Arizona only about 15 miles (24 km) by river from the Utah border. The 710-foot (220 m) dam impounds the Colorado primarily for hydroelectricity generation. In front of the dam the Glen Canyon Bridge carries U.S. Route 89 over the Colorado
Map showing locations of major dams in the Colorado River basin. Lee's Ferry , which separates the Upper and Lower Basins, is located just downriver from Glen Canyon Dam . This is a list of dams on the Colorado River system of the southwestern United States and northwestern Mexico .
Grand Canyon National Park is a national park of the United States located in northwestern Arizona, the 15th site to have been named as a national park.The park's central feature is the Grand Canyon, a gorge of the Colorado River, which is often considered one of the Wonders of the World.
With the controversy over Glen Canyon Dam still ongoing, the public pressure against these dams was immense. [248] As a result, the two Grand Canyon dams were omitted from the final CAP authorization in 1968. [250] In addition, the boundaries of Grand Canyon National Park were redrawn to prevent future dam projects in the area.
The Uinkaret volcanic field is an area of monogenetic volcanoes in northwestern Arizona, United States, located on the north rim of the Grand Canyon. [2] Lava flows from the Uinkaret volcanic field that have cascaded down into the Grand Canyon, damming the Colorado River, have been used to date the canyon's carving. [3]
The Grand Canyon section of the Colorado River, like several other big-water Western rivers, uses a rapids scale developed by Otis R. Marston of 1–10 for rapids, 10 being the most difficult. The International Scale of River Difficulty , which classifies rapids from class I to VI, is more common elsewhere in the US and internationally.
The lower 57.2 miles (92.1 km) is known as the Little Colorado River Gorge [3] and forms one of the largest arms of the Grand Canyon, at over 3,000 feet (910 m) deep where it joins the Colorado near Desert View in Grand Canyon National Park. An overlook of the gorge is a Navajo Nation Tribal Park.
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