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Lower Willamette River--St Helen's Bar

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LOWER COLUMBIA RIVER. ST. HELEN'S BAR. October 1876, Surveyed and drawn under the direction of Major John M. Wilson, Corps of Engineers, U.S.A., by Robt. A.Habersham, Asst. Rocky Plateau Basalt Cliff St. Helen's Upper Ship Channel Columbia City Warrior Rock Lower Ship Channel

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