Relief shown by contours, hypsometric tints and spot heights. Depth shown by soundings and isolines.; "Published with the co-operation of Sen?or Carlos M. Larrea, the Sociedad Geogräfica de Quito, and the Academia Nacional de Historia of Ecuador."; Includes ancillary map of Archipélago de Galäpagos (Colo?n).; Includes synoptical index, relative reliability diagram, index to adjoining sheets, note and legend.; "N. A-17."
45 x 67 centimeters
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