G. Sohon. “Fort Vancouver. W.T.” (Washington). From Isaac Stevens’ Explorations and Surveys For A Railroad Route From The Mississippi River To The Pacific Ocean…Near The Forty-Seventh And Forty-Ninth Parallels Of North Latitude. Washington: GP0, 1859 (printed by William A. Harris); second issue Washington: GPO, 1860 (printed by Thomas H. Ford). Tinted lithographs for 1859 issue by J. Bien; tinted lithographs for 1860 issue by Sarony, Major & Knapp. ca. 6 x 9. Very good condition.
The northern survey was commanded by Isaac I. Stevens, who had only just resigned his army commission to become governor of the Washington Territory. It covered the area between the 47th and 49th parallels, between St. Paul, MN and Puget Sound on the Pacific coast. It was the most elaborate of the surveys, with a group of natural scientists, including J.G. Cooper, G. Gibbs, and George Suckley, and making the first use of photography west of the Mississippi. The views for this report were drawn by John Mix Stanley and Gustavus Sohon