EPSG systems

EPSG:6583 NAD83(2011) / Texas North Central

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

System record
CodeEPSG:6583
NameNAD83(2011) / Texas North Central
TypeProjected system — Lambert Conic Conformal (2SP)
Area of use USA - Texas - SPCS - NC
United States (USA) - Texas - counties of: Andrews; Archer; Bailey; Baylor; Borden; Bowie; Callahan; Camp; Cass; Clay; Cochran; Collin; Cooke; Cottle; Crosby; Dallas; Dawson; Delta; Denton; Dickens; Eastland; Ellis; Erath; Fannin; Fisher; Floyd; Foard; Franklin; Gaines; Garza; Grayson; Gregg; Hale; Hardeman; Harrison; Haskell; Henderson; Hill; Hockley; Hood; Hopkins; Howard; Hunt; Jack; Johnson; Jones; Kaufman; Kent; King; Knox; Lamar; Lamb; Lubbock; Lynn; Marion; Martin; Mitchell; Montague; Morris; Motley; Navarro; Nolan; Palo Pinto; Panola; Parker; Rains; Red River; Rockwall; Rusk; Scurry; S
Bounds W -103,07° · S 31,72° · E -94,00° · N 34,58°
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 metre (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 origin31.666666666666668degree
Longitude of false origin-98.5degree
Latitude of 1st standard parallel33.96666666666667degree
Latitude of 2nd standard parallel32.13333333333333degree
Easting at false origin600000metre
Northing at false origin2000000metre

proj4 definition

+proj=lcc +lat_0=31.6666666666667 +lon_0=-98.5 +lat_1=33.9666666666667 +lat_2=32.1333333333333 +x_0=600000 +y_0=2000000 +ellps=GRS80 +units=m +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:6583.

WKT (ESRI format, the .prj content)

PROJCS["NAD_1983_2011_StatePlane_Texas_North_Central_FIPS_4202",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",600000.0],PARAMETER["False_Northing",2000000.0],PARAMETER["Central_Meridian",-98.5],PARAMETER["Standard_Parallel_1",33.9666666666667],PARAMETER["Standard_Parallel_2",32.1333333333333],PARAMETER["Latitude_Of_Origin",31.6666666666667],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.