The romance of the Colorado River : the story of its discovery in 1540, with an account of the later explorations, and with special reference to the voyages of Powell through the line of the great canyons (1903)
Dellenbaugh, Frederick Samuel, 1853-1935 · New York ; London : G.P. Putnam's Sons · leaf 429
John Wesley Powell. 1834-1902. Photograph by Bachrach & Brother, Washington, 1901. ,573
Colorado River (Colo.-Mexico) · Grand Canyon
Internet Archive · Smithsonian Libraries · Public domain (published before 1931). Free to use for anything.