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	Map shows plans for proposed pumping plant, drainage canals and levees for flood control.
	Citation Citation Citation Abstract Copy Title: Map of Columbia River and Sauvie Island, 1934 Author: Geological Survey (U.S.) Year: 1934 Map shows plans for proposed pumping plant, drainage canals and levees for flood control. Title: Map of Columbia River and Sauvie Island, 1934 Author: Geological Survey (U.S.) Year: 1934 Map shows plans for proposed pumping plant, drainage canals and levees for flood control.