Description
Published:30th ed. (Sept. 15/84)-32nd ed., Mar. 30/91)).
Item Description:"LORAN-C overprinted."
Depths shown by isolines and soundings.
Relief shown by hachures and spot heights.
"Soundings in fathoms."
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.