First through the canyon.

Bibliographic Details
Main Author: Powell, John Wesley, 1834-1902
Format: Book
Language:English
Published: St. Louis : Webster Division, McGraw-Hill, [1966]
Series:Science reading series
Subjects:
Description
Item Description: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.
Physical Description:26 pages : illustrations, map.