Originally published in 'Exploration of the Colorado River of the West and its tributaries, explored in 1869, 1870, 1871 and 1872'. Washington: Smithsonian Institute, 1875.
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Down the Colorado : diary of the first trip through the Grand Canyon, 1869 by John Wesley Powell. ISBN 004917004X. Published by Allen & Unwin in 1969. Publication and catalogue information, links to buy online and reader comments.
