Facing your Danger: The Evolution of the Cataract Boat By Roy Webb, University of Utah The cataract boat, designed by Norman D. Nevills in the late 1930s, was one evolutionary product of the wooden river boat (another wa

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Date: 2012-01-14 05:47:48 Western United States Geography of the United States Colorado River Colorado Plateau Grand Canyon Norman Nevills Major Powell Green River John Wesley Powell Nevills Flaming Gorge Dam Loper		Facing your Danger: The Evolution of the Cataract Boat By Roy Webb, University of Utah The cataract boat, designed by Norman D. Nevills in the late 1930s, was one evolutionary product of the wooden river boat (another wa Add to Reading List Source URL: www.gcrg.org Download Document from Source Website File Size: 39,41 KB Share Document on Facebook

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