Rio Colorado of the West; explored by 1st. Lieut. Joseph C. Ives, Topl. Engrs. under the direction of the Office of Explorations and Surveys, A.A. Humphreys, Capt. Topl. Engrs. in charge, by order of the Hon. John B. Floyd, Secretary of War; drawn by Frhr. F.W. v. Egloffstein, topographer to the expedition.; Explorations and Surveys, War Department, map no. 2.
Relief shown by shading and hachures. Also shows routes of exploration. At head of title: Explorations and Surveys, War Department, map no. 2. 1 map; 38 x 89 cm, folds to 27 x 18cm. This map is in the public domain. Please attribute access and use of this digitized map to the Stephen S. Clark Library, University of Michigan Library.
Ives, J. C., explorer.,Egloffstein, F. W., 1824-1885, topographer.,Humphreys, A. A. (Andrew Atkinson), 1810-1883, director.,Floyd, John B. (John Buchanan), 1806-1863, orderer.,Sartain, Samuel, 1830-1906, ruler.,Courtenay, F. letterer.,Dahl, James, former owner.,United States. Office of Explorations and Surveys, director.