Down the Great Unknown: John Wesley Powell's 1869 Journey of Discovery and Tragedy Through the Grand Canyon

by

Drawing on rarely examined diaries and journals, this "you are there" narrative follows one of the greatest explorative adventures in U.S. history: John Wesley Powell's 1869 journey through the Grand Canyon. 32-page photo insert.

Down the Great Unknown: John Wesley Powell's 1869 Journey of Discovery and Tragedy Through the Grand Canyon 2002, Harper Perennial, New York, NY

ISBN-13: 9780060955861

Trade paperback

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Down the Great Unknown: John Wesley Powell's 1869 Journey of Discovery and Tragedy Through the Grand Canyon 2001, HarperCollins Publishers

ISBN-13: 9780060196196

Hardcover

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