Map of the route pursued in 1849 by the U.S. troops, under the command of Bvt. Lieut. Col. Jno. M. Washington, Governor of New Mexico, in an expedition against the Navajos Indians
Relief shown by hachures. "Constructed under the general orders of Col. J.J. Abert, Chief Top.'l. Eng'rs." Includes Table of distances with remarks in relation to the route. In upper left margin: Senate Ex. doc. 1st. Sess. 31st. Cong. No. 64. Historic Maps copy has route of troops hand colored in red.