• The twin ports, Superior, Wisconsin, Duluth, Minnesota.

    Perspective map not drawn to scale. Bird's-eye-view. LC Panoramic maps (2nd ed.), 1060 Available also through the Library of Congress Web site as a raster image. AACR2: 100; 651/1; 651/2

    • Contributor: Wellge, H.
    • Original Format: Maps
    • Date: 1915