Chiefly for military purposes, under the authority of The Secretary of War, 1859. Partially revised and corrected to 1867. 1 inch to ca. Map includes present States of New Mexico and Arizona. Settlements, military posts, roads and trails, and routes of explorations.
Relief is shown by shading.
W 55-1 in RG 77 apparently is the manuscript version of this map. See also entry 573. Published Record Set, 1867. Department of the Missouri. E. H. Ruffner, Chief Engineer.