Military Reconnaissance of the Arkansas, Rio del Norte, and Rio Gila, by W. H. Emory, Lieut, Top, Engrs, assisted from Ft. Leavenworth to Santa Fe, by Lieut. J. W. Abert and W. G. Peck, and from Santa Fe to San Diego on the Pacific, by Lieut. W. H. Warner and Mr. Norman Bestor. Made in 1846-7, with the advance guard of the Army of the West, under command of Brig. Gen. Stephen W. Kearny. Constructed under the orders of Col. J. J. Abert. Ch. Corps Top. Engrs, 1847. Drawn by Joseph Welch. C. B. Graham Lith. Wash. D.C.