Map of passes in the Sierra Nevada from Walker's Pass to the Coast Range : from explorations and surveys
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 1:240,000. LC Railroad maps, 150 Available also through the Library of Congress Web site as a raster image.