Historical collections
Source-linked reports with geographic coverage including southwestern states.
Rough outline map of the southwestern United States showing major rivers and few important cities.
Relief shown by hachures. At head of title: Route near the 35th Parallel. Map no. 1. From U.S. War Department, Explorations and Surveys for a Railroad Route from the Mississippi River to the Pacific Ocean. Topographical Maps . . . to Illustrate the Various Reports . . . (Washington, 1859) Description derived from published bibliography. Inset: Sketch of Rio Pecos at Anton Chico. 20 x 15 cm. Scale 1:950,400. LC Railroad maps, 152 Available also through the Library of Congress Web site as a raster image.