Relief shown by contours, gradient tints, and spot heights. Depths shown by contours, bathymetric tints, and soundings.; Includes inset of "San Jose-Cartago region" and diagrams of "Synoptical index," "Adjoining sheets," and "Relative reliability."|56 x 66 centimeters|Scale 1:1,000,000; 1 inch to 15.78 miles; 1.014 inch to 16 miles