EPSG systems

EPSG:7127 NAD83(2011) / RMTCRS Billings (ft)

Projected system (Lambert Conic Conformal (1SP)) in use: USA - Montana - Billings. The full definition below, and conversion in one click.

System record
CodeEPSG:7127
NameNAD83(2011) / RMTCRS Billings (ft)
TypeProjected system — Lambert Conic Conformal (1SP)
Area of use USA - Montana - Billings
United States (USA) - Montana - Billings area.
Bounds W -109,42° · S 44,99° · E -107,99° · N 47,41°
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 foot (X east, Y north)
Transformation to WGS 84 NAD83(2011) to WGS 84 (1) (EPSG:9774) — accuracy 2 m
ScopeEngineering survey.

Projection parameters

ParameterValueUnit
Latitude of natural origin45.78333333333333degree
Longitude of natural origin-108.41666666666667degree
Scale factor at natural origin1.0001515unity
False easting656167.979foot
False northing164041.9948foot

proj4 definition

+proj=lcc +lat_1=45.7833333333333 +lat_0=45.7833333333333 +lon_0=-108.416666666667 +k_0=1.0001515 +x_0=199999.9999992 +y_0=50000.00001504 +ellps=GRS80 +units=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:7127.

WKT (ESRI format, the .prj content)

PROJCS["NAD_1983_2011_RMTCRS_Billings_Ft_Intl",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",656167.979],PARAMETER["False_Northing",164041.9948],PARAMETER["Central_Meridian",-108.416666666667],PARAMETER["Standard_Parallel_1",45.7833333333333],PARAMETER["Scale_Factor",1.0001515],PARAMETER["Latitude_Of_Origin",45.7833333333333],UNIT["foot",0.3048]]

All systems — United States

Source: EPSG registry v11.022 (IOGP), through the PROJ database. Always check a code on epsg.org before contractual work.