EPSG systems

EPSG:32084 NAD27 / MTM zone 4

Projected system (Transverse Mercator) in use: Canada - Labrador - 63°W to 60°W. The full definition below, and conversion in one click.

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System record
Code	EPSG:32084
Name	NAD27 / MTM zone 4
Type	Projected system — Transverse Mercator
Area of use	Canada - Labrador - 63°W to 60°W Canada - Labrador between 63°W and 60°W.
Bounds	W -63,00° · S 52,00° · E -60,00° · N 58,92°
Countries	Canada
Datum	North American Datum 1927
Ellipsoid	Clarke 1866 a = 6378206.4 m · 1/f = 294.978698214
Base geographic system	EPSG:4267 — NAD27
Unit	metre (E east, N north)
Transformation to WGS 84	NAD27 to WGS 84 (12) (EPSG:1181) — accuracy 9 m
Scope	Engineering survey, topographic mapping.

Projection parameters

Parameter	Value	Unit
Latitude of natural origin	0	degree
Longitude of natural origin	-61.5	degree
Scale factor at natural origin	0.9999	unity
False easting	304800	metre
False northing	0	metre

proj4 definition

+proj=tmerc +lat_0=0 +lon_0=-61.5 +k=0.9999 +x_0=304800 +y_0=0 +a=6378206.4000000004 +rf=294.9786982139 +units=m +towgs84=-22,160,190 +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:32084.

WKT (ESRI format, the .prj content)

PROJCS["NAD_1927_MTM_4",GEOGCS["GCS_North_American_1927",DATUM["D_North_American_1927",SPHEROID["Clarke_1866",6378206.4,294.978698213898]],PRIMEM["Greenwich",0.0],UNIT["Degree",0.0174532925199433]],PROJECTION["Transverse_Mercator"],PARAMETER["False_Easting",304800.0],PARAMETER["False_Northing",0.0],PARAMETER["Central_Meridian",-61.5],PARAMETER["Scale_Factor",0.9999],PARAMETER["Latitude_Of_Origin",0.0],UNIT["Meter",1.0]]

All systems — Canada

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

Projection parameters

proj4 definition

WKT (ESRI format, the .prj content)

Other systems — Canada