Title: Columbia River and minor tributaries. Letter from the Secretary of War transmitting pursuant to section 1 of the River and Harbor Act approved January 21, 1927, a letter from the Chief of Engineers, United States Army, dated March 29, 1932, submitting a report, together with accompanying papers and illustrations, containing a general plan for the improvement of the Columbia River and minor tributaries for the purposes of navigation and efficient development of water-power, the control of floods, and the needs of irrigation
Subjects: Irrigation, Dredging, Flood control