Relief shown by hachures. "De 20 leguas de 26 al grado." Pen-and-ink and pencil on tracing paper. LC Luso-Hispanic World, 528 Available also through the Library of Congress Web site as a raster image. Gift; A. B. Hagner; Apr. 27, 1914. In lower right margin: 308242, 14.
Scale not given. LC Luso-Hispanic World, 530 Manuscript, pen-and-ink and watercolor. Includes "Esplicacion del Plano." Available also through the Library of Congress Web site as a raster image. Vault AACR2: 650/2; 650/3