Explorations and surveys for a rail road route from the Mississippi River to the Pacific Ocean. Route near the 38th & 39th parallels
Relief shown by hachures and spot heights. 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) Scale 1:760,320; 12 miles to 1 in. LC Railroad maps, 160 LC Railroad maps, 161 LC Railroad maps, 162 LC Railroad maps, 163 Available also through the Library of Congress Web site as a raster image. AACR2: 100, 650/1; 700/1; 700/2; 700/3; 700/4; 700/5; 710/1
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