Prepared and published by the National Imagery and Mapping Agency. Depths shown by soundings, isolines, and gradient tints. Relief shown by spot heights. "From an Ecuadorean chart of 1980." "Copyright 1998 by the United States Government. No copyright claimed under Title 17 U.S.C." "Soundings in meters." Map no.22109 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.