MapRio Colorado of the West Relief shown by shading and hachures. Also shows routes of exploration. At head of title: Explorations and Surveys, War Department, map no. 2. Available also through the Library of Congress Web site as a raster image. 3 copies
- Contributor: Ives, J. C. - Egloffstein, F. W. - Humphreys, A. A. (Andrew Atkinson) - United States. Office of Explorations and Surveys
- Date: 1858
MapDiagram showing the history of the exploration and navigation... Available also through the Library of Congress web site as a raster image.
- Contributor: Stanton, Robert Brewster
- Date: 1908