Soil survey of Washington County, Oregon
By: by E.B. Watson ... [et al.].
Contributors: Watson, E. B. 1864-1926.; United States. Bureau of Soils.; Oregon State University. Agricultural Experiment Station.
Publisher: G.P.O.
Published: 1923
Place of publication: Washington, D.C
Language: eng
Number of pages: 51
Subjects: Soils -- Oregon -- Washington County -- Maps.; Soil surveys -- Oregon -- Washington County.
Genres: Maps.
Notes: Advance sheets-Field operations of the Bureau of Soils, 1919.

U.S. Dept. of Agriculture, Bureau of Soils, in cooperation with the Oregon Agricultural Experiment Station.