Landmarks in Arizona - Four Corners Monument, Painted Desert, Arizona, Glen Canyon Dam, Santa Claus, Arizona, Lake Powell, Lake Mead, Navajo (Paperback)

Please note that the content of this book primarily consists of articles available from Wikipedia or other free sources online. Pages: 33. Chapters: Four Corners Monument, Painted Desert, Arizona, Glen Canyon Dam, Santa Claus, Arizona, Lake Powell, Lake Mead, Navajo National Monument, Fairbank, Arizona, Grasshopper Junction, Arizona, Ashfork-Bainbridge Steel Dam, London Bridge, Parker Dam, Arcosanti, Gila River War Relocation Center, Gleeson, Arizona, Hotel San Carlos, Lee's Ferry, Heard Museum, Lake Mohave, Davis Dam, Tonto Natural Bridge, Wrigley Mansion, Mystery Castle, Burton Barr Central Library, Vasey's Paradise. Excerpt: Glen Canyon Dam is a concrete arch dam on the Colorado River in northern Arizona in the United States, just north of Page. The dam was built to provide hydroelectricity and flow regulation from the upper Colorado River Basin to the lower. Its reservoir is called Lake Powell, and is the second largest artificial lake in the country, extending upriver well into Utah. The dam is named for Glen Canyon, a colorful series of gorges most of which now lies under the reservoir. In the early 20th century, seven U.S. states and two Mexican provinces in the Colorado River basin signed agreements dividing water among them. Unfortunately, annual flow variations meant that the states in the upper basin would not always be able to deliver the amount of water to the lower basin stipulated by these contracts. The U.S. Bureau of Reclamation proposed a solution that would involve building multiple dams in the upper basin to regulate the flow downstream. However, problems arose when Reclamation proposed to build dams in the federally protected Echo Park canyon in Utah. After a long legal battle with environmentalist organizations such as the Sierra Club, they settled for a high dam at Glen Canyon. Construction of Glen Canyon Dam started in 1956 and was not finished until 1966. When the reservoir filled, the dam began to deliver a steady, regulated flow of...