EPSG systems

EPSG:6432 NAD83(2011) / Colorado South (ftUS)

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

System record
CodeEPSG:6432
NameNAD83(2011) / Colorado South (ftUS)
TypeProjected system — Lambert Conic Conformal (2SP)
Area of use USA - Colorado - SPCS - S
United States (USA) - Colorado - counties Alamosa; Archuleta; Baca; Bent; Conejos; Costilla; Crowley; Custer; Dolores; Hinsdale; Huerfano; Kiowa; La Plata; Las Animas; Mineral; Montezuma; Montrose; Otero; Ouray; Prowers; Pueblo; Rio Grande; Saguache; San Juan; San Miguel.
Bounds W -109,06° · S 36,98° · E -102,04° · N 38,68°
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 origin36.666666666666664degree
Longitude of false origin-105.5degree
Latitude of 1st standard parallel38.43333333333333degree
Latitude of 2nd standard parallel37.233333333333334degree
Easting at false origin3000000US survey foot
Northing at false origin1000000US survey foot

proj4 definition

+proj=lcc +lat_0=36.6666666666667 +lon_0=-105.5 +lat_1=38.4333333333333 +lat_2=37.2333333333333 +x_0=914401.828803658 +y_0=304800.609601219 +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:6432.

WKT (ESRI format, the .prj content)

PROJCS["NAD_1983_2011_StatePlane_Colorado_South_FIPS_0503_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",3000000.0],PARAMETER["False_Northing",1000000.0],PARAMETER["Central_Meridian",-105.5],PARAMETER["Standard_Parallel_1",38.4333333333333],PARAMETER["Standard_Parallel_2",37.2333333333333],PARAMETER["Latitude_Of_Origin",36.6666666666667],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.