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This map was created to delineate the extent of the active channel and other floodplain features for the Willamette River, Oregon, for the year 1932. The extent of the active channel and features such as alcoves, secondary channels,and islands were based on US Army Corps of Engineers river survey maps from 1928-1932. Water bodies (primarily main and secondary channels) were captured from the maps and interpreted for channel type.
Metadata: http://spatialdata.oregonexplorer.info/GPT9/catalog/search/resource/details.page?uuid={677EE052-5F6B-46F4-B1F7-E940E2195254}
Download: http://oregonexplorer.info/ExternalContent/SpatialDataForDownload/WRB_Channel_1932.zip |