VERTICAL REFERENCE SYSTEM Depths and heights are in meters referred to Baltic Sea Chart Datum BSCD 2000 (LAS-2000,5). CHART ACCUARCY Owing to the age of source information, some details on this chart may not be positioned accurately. Particular caution is advised when navigating near dangers. DATA SOURCE Bathymetric data-Maritime Administration of Latvia Surveys, USSR survey sheets. Topography-LGIA, information from port authority.