Prepared and published by the Defense Mapping Agency. Depths shown by isolines and soundings. Relief shown by contours and spot heights. "From Ecuadorian surveys to 1979, with additions to 1981." "Copyright 1996 by the United States Government. No copyright claimed under Title 17 U.S.C." "Soundings in meters." Includes compilation diagram. Map no.22090. This map is part of a collection of scanned and georeferenced nautical charts produced by the National Geospatial-Intelligence Agency (NGA).
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