Chart 1 : Symbols, Abbreviations and Terms

PDF Document

Depths - Section I

General

Ref. IHO Symbology Description CHS Symbology
1 Existence doubtful
2 Sounding doubtful
3.1 Reported, but not surveyed
3.2 Reported with year of report, but not surveyed
4 Reported, but not confirmed sounding or danger
Date modified: