Prepared and published by the National Geospatial-Intelligence Agency.. Depths shown by isolines and soundings. Relief shown by contours, hachures, and spot heights. "From Colombia Navy surveys to 1968." "Copyright 2006 by the United States Government. No copyright claimed under Title 17 U.S.C." "Soundings in meters." Includes tidal information. Georeferenced nautical chart. Map no. 22083. This map is part of a collection of scanned and georeferenced nautical charts produced by the National Geospatial-Intelligence Agency (NGA).