EPSG systems

EPSG:8123 NAD83(HARN) / WISCRS Sauk (m)

Projected system (Transverse Mercator) in use: USA - Wisconsin - Sauk. The full definition below, and conversion in one click.

System record
CodeEPSG:8123
NameNAD83(HARN) / WISCRS Sauk (m)
TypeProjected system — Transverse Mercator
Area of use USA - Wisconsin - Sauk
United States (USA) - Wisconsin - Sauk county.
Bounds W -90,32° · S 43,14° · E -89,59° · N 43,65°
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.

Projection parameters

ParameterValueUnit
Latitude of natural origin42.81944444444445degree
Longitude of natural origin-89.9degree
Scale factor at natural origin1.0000373868unity
False easting185623.5716metre
False northing0.0051metre

proj4 definition

+proj=tmerc +lat_0=42.8194444444444 +lon_0=-89.9 +k=1.0000373868 +x_0=185623.5716 +y_0=0.0051 +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:8123.

WKT (ESRI format, the .prj content)

PROJCS["NAD_1983_HARN_WISCRS_Sauk_County_Meters",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["Transverse_Mercator"],PARAMETER["False_Easting",185623.5716],PARAMETER["False_Northing",0.0051],PARAMETER["Central_Meridian",-89.9],PARAMETER["Scale_Factor",1.0000373868],PARAMETER["Latitude_Of_Origin",42.8194444444444],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.