🌍 GEODETIC REFERENCE
Surveying in China
CGCS2000 (China Geodetic Coordinate System 2000) is the legal datum. Public maps use the GCJ-02 obfuscated system; survey-grade work uses CGCS2000 Gauss-Kruger.
National datum
CGCS2000
Vertical datum
1985 National Height Datum (Qingdao)
UTM zones
45N through 53N
CORS stations (our DB)
9
Mapping authority
Ministry of Natural Resources (formerly NASG)
Projected coordinate systems & EPSG codes
CGCS2000 (geographic)EPSG:4490 →
CGCS2000 / Gauss-Kruger 3-degree zonesmultiple codes
CGCS2000 / UTM zonesmultiple codes