Whitney's map of Astoria and environs, Oregon / compiled from official data, by Henry Jackson & Co., civil engineers, March 1st, 1890.Henry Jackson & Co[1890?]"Entered according to act of Congress in the year 1890 by W.H. Whitney in the office of the Librarian of Congress at Washington."Cadastral map.Inset: [Mouth of the Columbia River, Oregon and Washington], scale [ca. 1:202,000].Map carries the logo of the Union Pacific Railroad.cartographic