Exploration of the Colorado River of the West and its tributaries
Subtitle: explored in 1869, 1870, 1871, and 1872
By: under the direction of the Secretary of the Smithsonian Institution.
Contributors: Powell, John Wesley, 1834-1902.; Thompson, A. H. 1839-1906.; Coues, Elliott, 1842-1899.; Goode, G. Brown 1851-1896.
Series: Western Americana, 1550-1900 -- reel 501, no. 5009.
Publisher: Govt. Print. Off.
Published: 1875
Place of publication: Washington
Language: eng
Format: Microform
Number of pages: 291
Subjects: Colorado River (Colo.-Mexico); United States -- Discovery and exploration.
Notes: Map and profile in pocket.

J.W. Powell in charge.

The present report does not include a narrative of the second descent of the river in 1871-1872, a detailed account of which may be found in F.S. Dellenbaugh's A Canyon voyage, New York, 1908.

Chapter 1-9 of pt. 1, with 6 chapters added, were published later (Meadville, Pa., 1895) under title: Canyons of Colorado, by J.W. Powell ...

Master microform held by: ResP.

Eberstadt no. III-321.

Howes, U.S.IANA, no. P.528.

Microfilm. Woodbridge, Conn. : Research Publications, 1975. 1 reel ; 35 mm. (Western Americana ; reel 501, no. 5009) 
Table of contents: title: pt. 1. History of the explorations of the cañons of the Colorado [May 24-Sept. 20, 1869] Report on a trip to the mouth of the Dirty Devil River [May 27-July 11, 1872] by A.H. Thompson.; title: pt. 2. On the physical features of the valley of the Colorado.; title: pt. 3. Zoology: Abstracts of results of a study of the genra Geomys and Thomomys, by Elliott Coues. Addendum A. The cranial and dental characters of Geomyidoe, by Elliott Coues. Addendum B. Notes on the salamander of Florida (Geomys Tueza) by G.B. Goode.