Compiled in 1921 and 1922. Compilation based on State map by the General Land Office. Modified polyconic projection Edition of 1922, reprinted 1944. Preliminary edition. Engraved and printed by the United States Geological Survey.
Portland Ogn. 1882. Showing all surveys made previous to January 1st 1882. Compiled by Robert A. Habersham, Civil Engineer. L. M. Snyder & Co. Map Publishers, 79 Dearborn St., Chicago. Entered according to Act of Congress in the year 1878 by J....
Revised Editions published by the Public Roads Administration. Published in Accordance with Act of Congress Appropv'd November 9, 1921, creating the Federal Aid Highway System. Highways corrected to June 1, 1940. Revised Edition 1940
Published by the State Board of Forestry ; compiled by Theodore Rowland under the direction of F. A. Elliott State Forester, Salem Oregon. Copyright 1914 by F. A. Elliott.