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Hetch Hetchy Valley |
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Hetch Hetchy Valley, in Yosemite National Park Yosemite National Park (yōsĕm`ĭtē), 761,266 acres (308,205 hectares), E central Calif.; est. ..... Click the link for more information. , central Calif., on the Tuolumne River. It once rivaled Yosemite Valley in beauty and grandeur. O'Shaughnessy Dam (completed 1923; enl. 1938) turned the valley into a lake c.9 mi (14 km) long, which is used for generating power and for supplying water to San Francisco by an aqueduct 156 mi (251 km) long. How to thank TFD for its existence? Tell a friend about us, add a link to this page, add the site to iGoogle, or visit webmaster's page for free fun content. |
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After the great earthquake and fire of 1906, San Francisco was in desperate need of a reliable water source--and proposals were made to damn the Tuolumne River and transform the Hetch Hetchy Valley into a giant hydro-electric supply for the city. In the 1920s, the Hetch Hetchy valley and the Tuolumne River that flowed through it in California were transformed from a protected wilderness area into a reservoir. When Congress passed the Raker Act in 1913, granting San Francisco the right to flood the Hetch Hetchy Valley in Yosemite National Park to bring water and hydroelectric power to a city devastated by the earthquake and fires of 1906, it was supposed to be the final act in a passion play that had been running in California since the late 1800s. |
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