The Great unknown
Subtitle: the journals of the historic first expedition down the Colorado River
By: [compiled and edited] by John Cooley.
Contributors: Cooley, John R., 1937-
Edition: 1st ed.
Publisher: Northland Pub.
Published: 1988
Place of publication: Flagstaff, Ariz
Language: eng
Number of pages: 207
Subjects: Powell, John Wesley, 1834-1902 -- Travel -- Colorado River (Colo.-Mexico); Colorado River (Colo.-Mexico) -- Description and travel.; Colorado River (Colo.-Mexico) -- Discovery and exploration.
Notes: Bibliography: p. 203-204.
Includes index.