1 map ; 76 x 165 cm Published to accompany 30th Cong., 1st sess., Ex. doc. 41 (serial no. 517). Shows daily route, connecting roads, settlements and physical features observed by party. Includes a table of geographical positions and barometric profile of the routes. "Assisted from Fort Leavenworth to Santa Fe by Lieut. J. W. Abert and W. G. Peck, and from Santa Fe to San Diego on the Pacific by Lietu. 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. Stephn. W. Kearny. Constructed under the orders of Col. J.J. Abert Ch. Corps Top. Engrs. 1847." "Drawn by Joseph Welch." "Engraved on stone by E. Weber& Co., Baltimore."