EPSG systems

EPSG:2836 NAD83(HARN) / Oklahoma North

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

System record
CodeEPSG:2836
NameNAD83(HARN) / Oklahoma North
TypeProjected system — Lambert Conic Conformal (2SP)
Area of use USA - Oklahoma - SPCS - N
United States (USA) - Oklahoma - counties of Adair; Alfalfa; Beaver; Blaine; Canadian; Cherokee; Cimarron; Craig; Creek; Custer; Delaware; Dewey; Ellis; Garfield; Grant; Harper; Kay; Kingfisher; Lincoln; Logan; Major; Mayes; Muskogee; Noble; Nowata; Okfuskee; Oklahoma; Okmulgee; Osage; Ottawa; Pawnee; Payne; Roger Mills; Rogers; Sequoyah; Texas; Tulsa; Wagoner; Washington; Woods; Woodward.
Bounds W -103,00° · S 35,27° · E -94,42° · N 37,01°
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 origin35degree
Longitude of false origin-98degree
Latitude of 1st standard parallel36.766666666666666degree
Latitude of 2nd standard parallel35.56666666666667degree
Easting at false origin600000metre
Northing at false origin0metre

proj4 definition

+proj=lcc +lat_0=35 +lon_0=-98 +lat_1=36.7666666666667 +lat_2=35.5666666666667 +x_0=600000 +y_0=0 +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:2836.

WKT (ESRI format, the .prj content)

PROJCS["NAD_1983_HARN_StatePlane_Oklahoma_North_FIPS_3501",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",600000.0],PARAMETER["False_Northing",0.0],PARAMETER["Central_Meridian",-98.0],PARAMETER["Standard_Parallel_1",36.7666666666667],PARAMETER["Standard_Parallel_2",35.5666666666667],PARAMETER["Latitude_Of_Origin",35.0],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.