EPSG systems

EPSG:3084 NAD83(HARN) / Texas Centric Lambert Conformal

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

System record
CodeEPSG:3084
NameNAD83(HARN) / Texas Centric Lambert Conformal
TypeProjected system — Lambert Conic Conformal (2SP)
Area of use USA - Texas
United States (USA) - Texas.
Bounds W -106,66° · S 25,83° · E -93,50° · N 36,50°
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
ScopeState-wide spatial data presentation requiring shape preservation.

Projection parameters

ParameterValueUnit
Latitude of false origin18degree
Longitude of false origin-100degree
Latitude of 1st standard parallel27.5degree
Latitude of 2nd standard parallel35degree
Easting at false origin1500000metre
Northing at false origin5000000metre

proj4 definition

+proj=lcc +lat_0=18 +lon_0=-100 +lat_1=27.5 +lat_2=35 +x_0=1500000 +y_0=5000000 +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:3084.

WKT (ESRI format, the .prj content)

PROJCS["NAD_1983_HARN_Texas_Centric_Mapping_System_Lambert",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",1500000.0],PARAMETER["False_Northing",5000000.0],PARAMETER["Central_Meridian",-100.0],PARAMETER["Standard_Parallel_1",27.5],PARAMETER["Standard_Parallel_2",35.0],PARAMETER["Latitude_Of_Origin",18.0],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.