Report of exploration in 1873 of the Colorado of the West and its tributaries
Same as report: Professor Powell's Report of the survey of the Colorado of the West: Letter from the Secretary of the Smithsonian Institution, transmitting a report of Professor Powell on the survey of the Colorado River of the West and its tributaries. Third preliminary report by J.W. Powell. Forty-third Congress, first session, House of Representatives, Miscellaneous Document No. 265.