Description
Published:21st ed. (Oct. 13/84)-24th ed. (Nov. 10/90).
Item Description:Depths shown by isolines and soundings.
"Soundings in feet."
Includes source diagram and location diagram of large scale charts.
Electronic resource.
Physical Description:online resource (maps) : color
Publication Frequency:Irregular
Format:The .jpg versions of these maps require Adobe Photoshop or Adobe Acrobat 9 Pro to view.