EPSG systems

EPSG:2768 NAD83(HARN) / California zone 3

Projected system (Lambert Conic Conformal (2SP)) in use: USA - California - SPCS - 3. The full definition below, and conversion in one click.

System record
CodeEPSG:2768
NameNAD83(HARN) / California zone 3
TypeProjected system — Lambert Conic Conformal (2SP)
Area of use USA - California - SPCS - 3
United States (USA) - California - counties Alameda; Calaveras; Contra Costa; Madera; Marin; Mariposa; Merced; Mono; San Francisco; San Joaquin; San Mateo; Santa Clara; Santa Cruz; Stanislaus; Tuolumne.
Bounds W -123,02° · S 36,73° · E -117,83° · N 38,71°
Countries United States
DatumNAD83 (High Accuracy Reference Network)
Ellipsoid GRS 1980 a = 6378137 m · 1/f = 298.257222101
Base geographic system EPSG:4152 — NAD83(HARN)
Unit metre (X east, Y north)
Transformation to WGS 84 NAD83(HARN) to WGS 84 (3) (EPSG:1901) — accuracy 1 m
ScopeEngineering survey, topographic mapping.

Projection parameters

ParameterValueUnit
Latitude of false origin36.5degree
Longitude of false origin-120.5degree
Latitude of 1st standard parallel38.43333333333333degree
Latitude of 2nd standard parallel37.06666666666667degree
Easting at false origin2000000metre
Northing at false origin500000metre

proj4 definition

+proj=lcc +lat_0=36.5 +lon_0=-120.5 +lat_1=38.4333333333333 +lat_2=37.0666666666667 +x_0=2000000 +y_0=500000 +ellps=GRS80 +units=m +towgs84=-0.991,1.9072,0.5129,0.02579,0.00965,0.01166,0 +no_defs

Paste it into QGIS, proj4js, PostGIS (spatial_ref_sys) or GDAL. +towgs84 carries the EPSG transformation to WGS 84; the official code stays EPSG:2768.

WKT (ESRI format, the .prj content)

PROJCS["NAD_1983_HARN_StatePlane_California_III_FIPS_0403",GEOGCS["GCS_North_American_1983_HARN",DATUM["D_North_American_1983_HARN",SPHEROID["GRS_1980",6378137.0,298.257222101]],PRIMEM["Greenwich",0.0],UNIT["Degree",0.0174532925199433]],PROJECTION["Lambert_Conformal_Conic"],PARAMETER["False_Easting",2000000.0],PARAMETER["False_Northing",500000.0],PARAMETER["Central_Meridian",-120.5],PARAMETER["Standard_Parallel_1",38.4333333333333],PARAMETER["Standard_Parallel_2",37.0666666666667],PARAMETER["Latitude_Of_Origin",36.5],UNIT["Meter",1.0]]

All systems — United States

Source: EPSG registry v11.022 (IOGP), through the PROJ database. Always check a code on epsg.org before contractual work.