EPSG:2138 NAD27(CGQ77) / Quebec Lambert
Projected system (Lambert Conic Conformal (2SP)) in use: Canada - Quebec. 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.
| Code | EPSG:2138 |
|---|---|
| Name | NAD27(CGQ77) / Quebec Lambert |
| Type | Projected system — Lambert Conic Conformal (2SP) |
| Area of use | Canada - Quebec |
| Bounds | W -79,85° · S 44,99° · E -57,10° · N 62,62° |
| Countries | Canada |
| Datum | North American Datum 1927 (CGQ77) |
| Ellipsoid | Clarke 1866 a = 6378206.4 m · 1/f = 294.978698214 |
| Base geographic system | EPSG:4609 — NAD27(CGQ77) |
| Unit | metre (X east, Y north) |
| Transformation to WGS 84 | No simple transformation published (ellipsoid alone) |
| Scope | Topographic mapping (medium and small scale). |
Projection parameters
| Parameter | Value | Unit |
|---|---|---|
| Latitude of false origin | 44 | degree |
| Longitude of false origin | -68.5 | degree |
| Latitude of 1st standard parallel | 60 | degree |
| Latitude of 2nd standard parallel | 46 | degree |
| Easting at false origin | 0 | metre |
| Northing at false origin | 0 | metre |
proj4 definition
+proj=lcc +lat_0=44 +lon_0=-68.5 +lat_1=60 +lat_2=46 +x_0=0 +y_0=0 +ellps=clrk66 +units=m +no_defsPaste it into QGIS, proj4js, PostGIS (spatial_ref_sys) or GDAL. +towgs84 carries the EPSG transformation to WGS 84; the official code stays EPSG:2138.
WKT (ESRI format, the .prj content)
PROJCS["NAD_1927_CGQ77_Quebec_Lambert",GEOGCS["GCS_NAD_1927_CGQ77",DATUM["D_NAD_1927_CGQ77",SPHEROID["Clarke_1866",6378206.4,294.978698213898]],PRIMEM["Greenwich",0.0],UNIT["Degree",0.0174532925199433]],PROJECTION["Lambert_Conformal_Conic"],PARAMETER["False_Easting",0.0],PARAMETER["False_Northing",0.0],PARAMETER["Central_Meridian",-68.5],PARAMETER["Standard_Parallel_1",60.0],PARAMETER["Standard_Parallel_2",46.0],PARAMETER["Latitude_Of_Origin",44.0],UNIT["Meter",1.0]]Other systems — Canada
- EPSG:2021NAD27(76) / MTM zone 12
- EPSG:2022NAD27(76) / MTM zone 13
- EPSG:2023NAD27(76) / MTM zone 14
- EPSG:2024NAD27(76) / MTM zone 15
- EPSG:2025NAD27(76) / MTM zone 16
- EPSG:2026NAD27(76) / MTM zone 17
- EPSG:2027NAD27(76) / UTM zone 15N
- EPSG:2028NAD27(76) / UTM zone 16N
- EPSG:2029NAD27(76) / UTM zone 17N
- EPSG:2030NAD27(76) / UTM zone 18N
- EPSG:2031NAD27(CGQ77) / UTM zone 17N
- EPSG:2032NAD27(CGQ77) / UTM zone 18N
- EPSG:2033NAD27(CGQ77) / UTM zone 19N
- EPSG:2034NAD27(CGQ77) / UTM zone 20N
- EPSG:2035NAD27(CGQ77) / UTM zone 21N
- EPSG:2200ATS77 / New Brunswick Stereographic (ATS77)
- EPSG:2219ATS77 / UTM zone 19N
- EPSG:2220ATS77 / UTM zone 20N
Source: EPSG registry v11.022 (IOGP), through the PROJ database. Always check a code on epsg.org before contractual work.