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 [sic] Indians, by James H. Simpson, 1st Lieut. T. Engrs., assisted by Mr. Edward M. Kern, constructed under the general orders of Col. J. J. Abert. Chief Topl. Engrs. Kern, Edward M. (drawn by, Santa Fe, N.M.); P.S. Duval's Steam Lith. Press, Philadelphia; Shoemaker, J. G. (engr.), Senate Ex. Doc. 1st Sess. 31st. Cong. No. 64, 1849
