1-631-469 - The Print Collector/Heritage Images

The Rocky Mountains, looking westward, USA, 1856. The United States Pacific Railroad Survey party crosses an area west of present-day Helena, Montana. Print from Reports of Explorations and Surveys to Ascertain the Most Practicable and Economical Route for a Railroad from the Mississippi River to the Pacific Ocean made under the direction of the Secretary of War in 1853-1855, by Beverley Tucker, volume III, published by Sarony, Major and Knapp (Washington, 1856).