Rocky Mountains to Puget Sound : from explorations and surveys

Description

Relief shown by hachures. At head of title: Route near the 47th and 49th Parallels. Map no. 3. "Drawn by John Lambert, topographer of the exploration." 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: (Supplementary sketch) Reconnaissance of the railroad route from Wallawalla to Seattle via Yak-e-mah River & Snoqualmie Pass. By A. W. Tinkham in January 1854. Drawn by J. R. P. Mechlin. 20 x 28 cm. Scale 1:1,200,000. LC Railroad maps, 156 Available also through the Library of Congress Web site as a raster image.