Prepared and published by the National Imagery and Mapping Agency. Depths shown by isolines, soundings, and gradient tints. Relief shown by contours and spot heights. "From Brazilian surveys from 1961 to 1964." "Copyright 1996 by the United States Government. No copyright claimed under Title 17 U.S.C." "Soundings in meters." Map No. 24102. This map is part of a collection of scanned and georeferenced nautical charts produced by the National Geospatial-Intelligence Agency (NGA).