thephotosocietyのインスタグラム(thephotosociety) - 10月12日 07時34分

Photo by Michael George @migeophoto // Because the Colorado River is the single largest source of water in the southwestern United States, humans have implemented a few massive dam projects to create a more dependable flow. In this image, you can see the Glen Canyon Dam, located in northern Arizona. The dam is 710 feet high and was built from 1956 - 1966. According to the Glen Canyon Institute: In 1963, the diversion tunnels of Glen Canyon Dam were screwed shut causing the waters of the Colorado River to back up 186 miles through Glen Canyon forming Lake Powell. Built for political purposes, the dam was originally meant to provide a sustainable water supply to the arid Southwest, but has since undermined that very objective and has caused massive collateral damage across the Colorado River Basin. Before the dam, Glen Canyon was a wonderland of gorges, spires, cliffs, and grottoes; the biological heart of the Colorado River, with more than 79 species of plants, 189 species of birds, and 34 species of mammals; and a cultural treasure, with more than 3,000 ancient ruins. After the dam, Glen Canyon became known as “the place no one knew” and America’s “lost national park.” Legendary conservationist David Brower lamented, “Glen Canyon died in 1963…. Neither you nor I, nor anyone else, knew it well enough to insist that at all costs it should endure. When we began to find out it was too late.” // #glencanyondam #glencanyon #northernarizona

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