Relief shown by hachures. Prime meridian: London. In upper right corner: Gent. Mag. March 1790. Pt. I, p. 197. Available also through the Library of Congress Web site as a raster image.
Also covers northern United States. Relief shown pictorially. Copy of a manuscript map from the Archives of the Hudson's Bay Company. Pen-and-ink and watercolor. Available also through the Library of Congress W More