Depths shown by isolines and soundings.
Relief shown by spot heights.
"From various sources to 1989."
Names in Danish, with glossary in English.
"Copyright restrictions of the country of origin continue to exist."
"Soundings in meters."
Insets: A. Denmark Indlobet Til (The Entrance to) Frederikshavn. Scale 1:50,000 -- B. Denmark Frederikshawvn. Scale 1:12,500.
Includes source diagram.