Description
Published:26th ed. (Nov. 12/83)-29th ed. (Nov. 23/91).
Item Description:Depths shown by isolines and soundings.
Relief shown by hachures and spot heights.
"Soundings in fathoms."
Includes source diagram, tidal information, and diagram of large scale charts.
Electronic resource.
Physical Description:online resource (maps) : color
Publication Frequency:Irregular