Down the great unknown
Subtitle: John Wesley Powell's 1869 journey of discovery and tragedy through the Grand Canyon
By: Edward Dolnick
Series: Thorndike Press large print American history series
Publisher: Thorndike Press
Published: 2002
Place of publication: Waterville, Me
Language: eng
Number of pages: 751
ISBN-13: 9780783897769
Subjects: Description and travel; Large type books; Travel; Explorers; Biography; Discovery and exploration
Notes: Originally published: New York : HarperCollins, c2001.

Includes bibliographical references (p. 721-747).