General map of explorations and surveys in California
At head of title: Routes in California to connect with the routes near the 32nd. and 35th. parallels. Relief shown by hachures. 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. Scale 1:600,000. LC Railroad maps, 148 Available also through the Library of Congress Web site as a raster image. Second copy is missing left side of map.