EPSG systems

EPSG:6479 NAD83(2011) / Louisiana South (ftUS)

Projected system (Lambert Conic Conformal (2SP)) in use: USA - Louisiana - SPCS83 - S. The full definition below, and conversion in one click.

System record
CodeEPSG:6479
NameNAD83(2011) / Louisiana South (ftUS)
TypeProjected system — Lambert Conic Conformal (2SP)
Area of use USA - Louisiana - SPCS83 - S
United States (USA) - Louisiana - counties of Acadia; Allen; Ascension; Assumption; Beauregard; Calcasieu; Cameron; East Baton Rouge; East Feliciana; Evangeline; Iberia; Iberville; Jefferson; Jefferson Davis; Lafayette; LaFourche; Livingston; Orleans; Plaquemines; Pointe Coupee; St Bernard; St Charles; St Helena; St James; St John the Baptist; St Landry; St Martin; St Mary; St Tammany; Tangipahoa; Terrebonne; Vermilion; Washington; West Baton Rouge; West Feliciana.
Bounds W -93,94° · S 28,85° · E -88,75° · N 31,07°
Countries United States
DatumNAD83 (National Spatial Reference System 2011)
Ellipsoid GRS 1980 a = 6378137 m · 1/f = 298.257222101
Base geographic system EPSG:6318 — NAD83(2011)
Unit US survey foot (X east, Y north)
Transformation to WGS 84 NAD83(2011) to WGS 84 (1) (EPSG:9774) — accuracy 2 m
ScopeEngineering survey, topographic mapping.

Projection parameters

ParameterValueUnit
Latitude of false origin28.5degree
Longitude of false origin-91.33333333333333degree
Latitude of 1st standard parallel30.7degree
Latitude of 2nd standard parallel29.3degree
Easting at false origin3280833.3333US survey foot
Northing at false origin0US survey foot

proj4 definition

+proj=lcc +lat_0=28.5 +lon_0=-91.3333333333333 +lat_1=30.7 +lat_2=29.3 +x_0=999999.99998984 +y_0=0 +ellps=GRS80 +units=us-ft +towgs84=0,0,0 +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:6479.

WKT (ESRI format, the .prj content)

PROJCS["NAD_1983_2011_StatePlane_Louisiana_South_FIPS_1702_Ft_US",GEOGCS["GCS_NAD_1983_2011",DATUM["D_NAD_1983_2011",SPHEROID["GRS_1980",6378137.0,298.257222101]],PRIMEM["Greenwich",0.0],UNIT["Degree",0.0174532925199433]],PROJECTION["Lambert_Conformal_Conic"],PARAMETER["False_Easting",3280833.3333],PARAMETER["False_Northing",0.0],PARAMETER["Central_Meridian",-91.3333333333333],PARAMETER["Standard_Parallel_1",30.7],PARAMETER["Standard_Parallel_2",29.3],PARAMETER["Latitude_Of_Origin",28.5],UNIT["US survey foot",0.304800609601219]]

All systems — United States

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