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Restore Hetch Hetchy is a non-profit organization seeking to restore the Hetch Hetchy Valley in Yosemite National Park to its original condition. The damming of Yosemite's Hetch Hetchy Valley, permitted by the 1913 Raker Act, was the only time in American history that significant development has been allowed in any of our national parks. As Ken Brower's 2013 book on the subject exhorts, it is time to correct a great American mistake. ==History== The Hetch Hetchy Valley was sculpted by glaciers as recently as 10,000 years ago (like nearby Yosemite Valley). It has an elevation of 3,800 feet above sea level and is 3 miles long in an east to west orientation.〔Charles Frederick Hoffmann (1838-1913), “ Notes on Hetch-Hetchy Valley,” Proceedings of the California Academy of Sciences (San Francisco: CAS, 1868), series 1, 3:5, pp. 368-370. Digitized by Dan Anderson, July 2005. http://www.yosemite.ca.us/library/notes_on_hetch-hetchy_valley.html〕 The Hetch Hetchy Valley is in the northwest corner of Yosemite National Park which was established in 1890. Even before the establishment of Yosemite National Park, the city of San Francisco began considering the Tuolumne River and Hetch Hetchy Valley as a possible location for a reliable water source. This sparked a social and political debate which lasted until the issue was brought before Congress. John Muir, a naturalist and president of the Sierra Club, fought vigorously against the proposition of flooding the valley, stating, "Dam Hetch Hetchy! As well dam for water-tanks the people’s cathedrals and churches, for no holier temple has ever been consecrated by the heart of man."〔(【引用サイトリンク】 title=''The Yosemite'' )〕 The construction of the O'Shaughnessy Dam (built 1915 - 1923) flooded the valley, creating the Hetch Hetchy Reservoir. In the late 1980s, in response to an initiative by the Reagan Administration, the national Sierra Club created a group dedicated to restoring Hetch Hetchy Valley in Yosemite National Park called the Hetch Hetchy Restoration Task Force. In 1999 the Club recognized the need for a more focused independent organization and created a separate non-profit organization called Restore Hetch Hetchy (RHH). For ten years, RHH focused on building a body of scientific evidence demonstrating the Hetch Hetchy Valley could be restored without harming the interests of the City of San Francisco. Multiple organizations including the State of California, the University of California, Davis, the Environmental Defense Fund, the federal Bureau of Reclamation, the National Park Service, and the University of Wisconsin all issued reports supporting restoration. Recognizing that the citizens of San Francisco could unilaterally restore Hetch Hetchy Valley without an act of Congress to reverse the Raker Act, RHH opened an office there in 2009. It currently works to educate San Francisco residents and others about the opportunity to bring Hetch Hetchy Valley back to life. In 2014, Restore Hetch Hetchy relocated its office to downtown Oakland. Because the reservoir in Hetch Hetchy is part of a water-diversion and electric-generating system on the Tuolumne River that includes the much larger downstream reservoir, Don Pedro (51% funded by the San Francisco Public Utilities Commission), as well as SFPUC's own Cherry and Eleanor Reservoirs near Hetch Hetchy, RHH filed comments in 2011 before the Federal Energy Regulatory Commission (FERC) on the 2015 relicensing of Don Pedro Reservoir. 抄文引用元・出典: フリー百科事典『 ウィキペディア（Wikipedia）』 ■ウィキペディアで「Restore Hetch Hetchy」の詳細全文を読む スポンサード リンク
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