When geologist Powell and his party of explorers first assayed the Colorado in 1869, it was North America's longest stretch of uncharted river. This is the story of that three-month, thousand-mile excursion, told in the words of the men who negotiated and mapped the river, through their journals, accounts, and letters. Black-and-white illustrations.
- ISBN10 0486120511
- ISBN13 9780486120515
- Publish Date 27 December 2012 (first published 1 January 1957)
- Publish Status Active
- Publish Country US
- Imprint Dover Publications
- Format eBook
- Pages 450
- Language English