Description
Published:Began with: 11th ed., Feb. 4, 1984; ceased with 13th ed., June 9, 1990.
Item Description:Depths shown by isolines and soundings.
Relief shown by contours, hachures and spot heights.
"Soundings in feet."
Includes tidal information.
Electronic resource.
Physical Description:online resource (maps) : color
Publication Frequency:Irregular