EarthWorks Geospatial Catalog

United States, Alaska--Aleutian Islands, Unalaska Island, Chernofski Harbor / Coast Survey.

Depths shown by isolines and soundings. Relief shown by contours, hachures and spot heights. Shipping list no.: 2004-0041-S. "Soundings in fathoms." Includes tidal information.
U.S. Dept. of Commerce, NOAA, NOS, Coast Survey ;
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