EPSG systems

EPSG:7116 NAD83(2011) / RMTCRS Bobcat (m)

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

System record
CodeEPSG:7116
NameNAD83(2011) / RMTCRS Bobcat (m)
TypeProjected system — Lambert Conic Conformal (1SP)
Area of use USA - Montana - Three Forks
United States (USA) - Montana - Three Forks area.
Bounds W -112,34° · S 45,36° · E -110,75° · N 46,59°
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 metre (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 origin46.25degree
Longitude of natural origin-111.25degree
Scale factor at natural origin1.000185unity
False easting100000metre
False northing100000metre

proj4 definition

+proj=lcc +lat_1=46.25 +lat_0=46.25 +lon_0=-111.25 +k_0=1.000185 +x_0=100000 +y_0=100000 +ellps=GRS80 +units=m +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:7116.

WKT (ESRI format, the .prj content)

PROJCS["NAD_1983_2011_RMTCRS_Bobcat_Meters",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",100000.0],PARAMETER["False_Northing",100000.0],PARAMETER["Central_Meridian",-111.25],PARAMETER["Standard_Parallel_1",46.25],PARAMETER["Scale_Factor",1.000185],PARAMETER["Latitude_Of_Origin",46.25],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.