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U.S. Time Periods » 1865-1920: Modern America

The Conservation Movement at a Crossroads: the Hetch Hetchy Controversy

is a two-part teaching unit about the controversy among conservationists over a proposal to turn part of Yosemite National Park into a dam to furnish water to San Francisco. The first part explores the history of the conservation movement in general, while the second links to primary records, such as Congressional debates, of Hetch Hetchy itself. (Library of Congress)

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Science »  Earth Sciences »  Environment
U.S. History Topics »  States & Regions »  California
U.S. Time Periods »  1865-1920: Modern America » 

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