GB 14512-1993

This standard specifies the compilation rules, symbol sets, and cartographic conventions for creating 1:1,000,000 scale topographic maps in China. It is applied in national mapping agencies and geographic information systems to ensure uniform representation of terrain, hydrography, transportation, and administrative boundaries across large-scale regional planning and resource surveys. The standard is primarily used for producing base maps that support military operations, geological exploration, and environmental monitoring at a continental or national overview level.