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Rough-Water Man: Elwyn Blakes Colorado River Expeditions

Rough-Water Man: Elwyn Blakes Colorado River Expeditions

Author:
Pages: 754
ISBN: 0525953612
Language: English

In 1902 the passage of the Reclamation Act and its mandate for the federal government to build dams for irrigation in the West created a need for accurate topographical surveys and geological studies of the rivers where the dams would be built. By 1920 the U.S. Geological Survey (USGS) and other agencies had surveyed the easily accessible stretches of the Colorado River an








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