Prepared and published by the Defense Mapping Agency. Depths shown by isolines and soundings. Relief shown by spot heights. "From a Chilean chart of 1980." "Copyright 1996 by the United States Government. No copyright claimed under Title 17 U.S.C." "Soundings in meters." Includes source listing and index to next larger scale charts. 22305 This map is part of a collection of scanned and georeferenced nautical charts produced by the National Geospatial-Intelligence Agency (NGA). This layer is presented in the WGS84 coordinate system for web display purposes. Downloadable data are provided in native coordinate system or projection.