From the northern boundary of California to the Columbia River : from explorations and surveys /

Scale 1:760,320.
Relief shown by hachures.
At head of title: Routes in Oregon and California. Map no. 2.
"Drawn by John Young."
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)
LC Railroad maps, 170
Description derived from published bibliography.
Available also through the Library of Congress Web site as a raster image.