First through the canyon.
Series: Science reading series
Publisher: Webster Division, McGraw-Hill
Published: 1966
Place of publication: St. Louis
Language: eng
Number of pages: 26
Subjects: Colorado River (Colo.-Mexico); Grand Canyon (Ariz.); Southwest, New -- Discovery and exploration.
Notes: Based on chapter 8 of the Smithsonian report first published in 1875 under title: Exploration of the Colorado River of the West and its tributaries.