Preliminary map no.2 of the country surveyed in 1872 and 1873.
Geological and Geographical Survey of the Territories (U.S.)
Thompson, A. H. (Almon Harris), 1839-1906.
Powell, John Wesley, 1834-1902.
Bishop, Francis Marion, 1843-1933.
Dellenbaugh, Frederick Samuel, 1853-1935.
Jones, S. V.
cartographic
[S.l.,
1873]
eng
Grand Canyon (Ariz.)--Maps.
United States Grand Canyon.
Available also through the Library of Congress Web site as a raster image.
http://hdl.loc.gov/loc.gmd/g4332g.ct000172