海図21-074
| Index No. | 21-074 |
|---|---|
| Country | Vietnam |
| Area | Gulf of Tonkin |
| Publisher | Defense Mapping Agency Hydrographic Center, Washington, D.C. Defense Mapping Agency Hydrographic/Topographic Center, Bethesda, MD |
| Type | Nautical Chart |
| Scale | 1:145,000/ 1:146,300 |
| Year | 1975,1993 |
| Number of sheet | 2 |