United States. Army. Corps of Topographical EngineersRelief shown by hachures.; Shows various proposed railway route from Memphis to the Rio Grande; includes topography, hydrology, Indian villages, forts, mineral deposits, Llano Estacado, and numbered campsites.; Originally published in Report of the Secretary of War on the several Pacific railroad expeditions (33rd Cong., 1st Sess., House Ex. Doc. No. 129, Serial 739).; Cited in Carl I. Wheat's Mapping the Transmississippi West, 1540- 1861; volume 4, no. 873.67 x 204 centimetersJPEGUMN_ALMA:9957954140001701engU.S. Army Corps of Topographical Engineers (Washington, D.C)PublicReconnaissance and survey of a railway route from Mississippi River near the 35th parallel north lat to Pacific Ocean : Map no. 1MapsUnited StatesUniversity of Minnesota