United States, Hydrographic Office. From British and United States surveys to 1882 ; published June, 1883 at the Hydrographic Office under the authority of the Secretary of the Navy. ... U.S. Navy Hydrographic Office,.
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by the U. S. Coast and Geodetic Survey. Relief shown by hachures and spot heights. Depths shown by soundings and shading. "6400.". Coast and Geodetic Survey.