The Romance of the Colorado River : The Story of its Discovery in 1840, with an Account of the Later Explorations, and with Special Reference to the Voyages of Powell through the Line of the Great Canyons - Dellenbaugh, Frederick Samuel, 1853-1935 (Project Gutenberg, 2003)
Electronic text
Keywords: Grand Canyon (Ariz.) -- Description and travel; Grand Canyon (Ariz.) -- Discovery and exploration; Colorado River (Colo.-Mexico) -- Description and travel; Colorado River (Colo.-Mexico) -- Discovery and exploration; Colorado River Valley (Colo.-Mexico) -- Description and travel; Colorado River Valley (Colo.-Mexico) -- Discovery and exploration; Powell, John Wesley, 1834-1902