EPSG systems

EPSG:6804 NAD83(CORS96) / Oregon Columbia River East zone (m)

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

EPSG publishes no simple transformation to WGS 84 for this datum: conversion works on the ellipsoid alone and can be off by tens of metres.

System record
CodeEPSG:6804
NameNAD83(CORS96) / Oregon Columbia River East zone (m)
TypeProjected system — Lambert Conic Conformal (1SP)
Area of use USA - Oregon - Columbia River East
United States (USA) - Oregon - Columbia River area between approximately 122°03'W and 118°53'W.
Bounds W -122,05° · S 45,49° · E -118,89° · N 46,08°
Countries United States
DatumNAD83 (Continuously Operating Reference Station 1996)
Ellipsoid GRS 1980 a = 6378137 m · 1/f = 298.257222101
Base geographic system EPSG:6783 — NAD83(CORS96)
Unit metre (X east, Y north)
Transformation to WGS 84 No simple transformation published (ellipsoid alone)
ScopeEngineering survey.

Projection parameters

ParameterValueUnit
Latitude of natural origin45.666666666666664degree
Longitude of natural origin-120.5degree
Scale factor at natural origin1.000008unity
False easting150000metre
False northing30000metre

proj4 definition

+proj=lcc +lat_1=45.6666666666667 +lat_0=45.6666666666667 +lon_0=-120.5 +k_0=1.000008 +x_0=150000 +y_0=30000 +ellps=GRS80 +units=m +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:6804.

WKT (ESRI format, the .prj content)

PROJCS["OCRS_Columbia_River_East_NAD_1983_CORS96_LCC_Meters",GEOGCS["GCS_NAD_1983_CORS96",DATUM["D_NAD_1983_CORS96",SPHEROID["GRS_1980",6378137.0,298.257222101]],PRIMEM["Greenwich",0.0],UNIT["Degree",0.0174532925199433]],PROJECTION["Lambert_Conformal_Conic"],PARAMETER["False_Easting",150000.0],PARAMETER["False_Northing",30000.0],PARAMETER["Central_Meridian",-120.5],PARAMETER["Standard_Parallel_1",45.6666666666667],PARAMETER["Scale_Factor",1.000008],PARAMETER["Latitude_Of_Origin",45.6666666666667],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.