Compiled by A. F. Dinsmore. Drawn by Wm. 1 inch to 15 miles. County boundaries and Indian and military reservations are shown in color. Also shows status of public land surveys, towns and cities, locations of U.S. land offices, roads, railroad lines, and railroad land- grant limits.
Relief is shown by hachures.
Also a black and white base map for this date. Post Route Map of the State of Oregon and Territory of Washington, showing post offices with the intermediate distances and mail routes in operation on the 1st of February, 1887. Published . . . 1 inch to 10 miles. 2 sections, each 28.5 x 44.