Includes charts of altitudes and distances. and Stamp and ms. on verso: "Yale University Map Collection gift of Hiram Bingham", "Hiram Bingham Bought of Chardenat August 1913".
Relief shown by shading. and Shows exploration route of Sr. Coronel D. Pedro Portillo, some roads, "Ferro-Carril Central," and "Proyecto de Ferro-Carril al Oriente."