Title: Columbia River and tributaries, Northwestern United States
Subtitle: letter from the Secretary of the Army transmitting a letter from the Chief of Engineers, United States Army, dated June 28 1949, submitting a report together with accompanying papers and illustrations, on a review of reports on, and preliminary examinations and surveys of the Columbia River and tributaries, Northwestern United States, made pursuant to several congressional authorizations listed in the report.
Places: Columbia River Watershed