Description
Published:25th ed. (Feb. 9/85)-28th ed. (Aug. 24/91).
Item Description:"LORAN-C overprinted."
Depths shown by isolines and soundings.
Relief shown by contours, hachures, and spot heights.
"Soundings in fathoms."
Includes source diagram and location diagram of larger scale charts of areas shown.
Electronic resource.
Physical Description:online resource (maps) : color
Publication Frequency:Irregular