EPSG systems

EPSG:32024 NAD27 / 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:32024
NameNAD27 / 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
DatumNorth American Datum 1927
Ellipsoid Clarke 1866 a = 6378206.4 m · 1/f = 294.978698214
Base geographic system EPSG:4267 — NAD27
Unit US survey foot (X east, Y north)
Transformation to WGS 84 NAD27 to WGS 84 (6) (EPSG:1175) — accuracy 7 m
ScopeEngineering survey, topographic mapping.

Projection parameters

ParameterValueUnit
Latitude of false origin35degree
Longitude of false origin-98degree
Latitude of 1st standard parallel35.56666666666667degree
Latitude of 2nd standard parallel36.766666666666666degree
Easting at false origin2000000US survey foot
Northing at false origin0US survey foot

proj4 definition

+proj=lcc +lat_0=35 +lon_0=-98 +lat_1=35.5666666666667 +lat_2=36.7666666666667 +x_0=609601.219202438 +y_0=0 +a=6378206.4000000004 +rf=294.9786982139 +units=us-ft +towgs84=-8,159,175 +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:32024.

WKT (ESRI format, the .prj content)

PROJCS["NAD_1927_StatePlane_Oklahoma_North_FIPS_3501",GEOGCS["GCS_North_American_1927",DATUM["D_North_American_1927",SPHEROID["Clarke_1866",6378206.4,294.978698213898]],PRIMEM["Greenwich",0.0],UNIT["Degree",0.0174532925199433]],PROJECTION["Lambert_Conformal_Conic"],PARAMETER["False_Easting",2000000.0],PARAMETER["False_Northing",0.0],PARAMETER["Central_Meridian",-98.0],PARAMETER["Standard_Parallel_1",35.5666666666667],PARAMETER["Standard_Parallel_2",36.7666666666667],PARAMETER["Latitude_Of_Origin",35.0],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.