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Paperback Rough-Water Man: Elwyn Blake's Colorado River Expeditions Book

ISBN: 0874179149

ISBN13: 9780874179149

Rough-Water Man: Elwyn Blake's Colorado River Expeditions

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Book Overview

The passage of the 1902 Reclamation Act created a mandate for the federal government to build dams on the Colorado River and its powerful tributaries. By 1920 the US Geological Survey had surveyed the river's main courses, but still needed accurate charts of the last stretches of deep canyons and white-water rapids, accessible only by boat.Rough-Water Man is the first detailed account of these mapping expeditions by the USGS--the San Juan Canyon...

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