| Author: | Powell, John Wesley, 1834-1902 |
| Subject: | F786, Colorado River (Colo.-Mexico), Grand Canyon (Ariz.), United States -- Discovery and exploration |
| Format: | Electronic text |
| Date issued: | 2005 |
| Language: | English |
| Publisher: | Project Gutenberg, |
| Rights: | Public domain in the USA. |
| Download link: | Canyons of the Colorado [electronic resource] / John Wesley Powell |