1964 flood commemoration

Title from PDF caption (viewed on November 19, 2020)., "Campaign partners: Oregon Emergency Management, Oregon Dept. of Geology and Mineral Industries, Natural Resources Conservation Service, Oregon Dept. of Land Conservation and Development, U.S. Army Corps of Engineers Portland District, U.S. Geological Survey, Clackamas County, Oregon Water Resources Department, National Weather Service"--Page 2., Mode of access: Internet from the Oregon Government Publications Collection., Text in English.
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