Description
Published:-16th ed. (Dec. 22/90).
Item Description:Depths shown by isolines and soundings.
"Soundings in feet."
Insets: Continuation of Mississippi River Gulf outlet canal. Scale 1:15,000 -- Continuation of Inner Harbor navigation canal. Scale 1:15,000.
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.