Flood plain information
Subtitle: Tualatin River and tributaries, Washington County, Oregon
By: by U.S. Army Engineer District, Portland, Corps of Engineers ; prepared for Washington County, Oregon.
Publisher: The District
Published: 1969
Place of publication: Portland, Or
Language: eng
Number of pages: 72
Subjects: Floods -- Oregon -- Tualatin River.; Floods -- Oregon -- Washington County.
Other titles: Tualatin River and tributaries, Washington County, Oregon.
Notes: Cover title.

Part of illustrative matter in pocket.