Description
Published:Began with: 14th ed., July 30, 1983; ceased with: 16th ed., Aug. 26, 1995.
Item Description:Depths shown by isolines and soundings.
Relief shown by contours, hachures, and spot heights.
"Soundings in fathoms."
Includes tidal information.
Electronic resource.
Physical Description:online resource (maps) : color
Publication Frequency:Irregular