Description
Published:33rd ed. (May 7/92)-35th ed. (Jan. 7/95).
Item Description:"Omega overprinted."
Depths shown by isolines and soundings.
Relief shown by hachures and spot heights.
"Soundings in fathoms."
"For offshore navigation only."
Includes location diagram of large scale charts.
Electronic resource.
Physical Description:online resource (maps) : color
Publication Frequency:Irregular