EPSG:CODE

EPSG:3779 — NAD83(CSRS) / Alberta 3TM ref merid 111 W

Projected · Canada - Alberta - east of 112.5°W

Export Formats

OGC WKT
PROJCS[
    "NAD83(CSRS) / Alberta 3TM ref merid 111 W",
    GEOGCS[
        "NAD83(CSRS)",
        DATUM[
            "NAD83_Canadian_Spatial_Reference_System",
            SPHEROID["GRS 1980",6378137,298.257222101],
            TOWGS84[-0.991,1.9072,0.5129,-1.25033E-07,-4.6785E-08,-5.6529E-08,0]
        ],
        PRIMEM["Greenwich",0,AUTHORITY["EPSG","8901"]],
        UNIT["degree",0.0174532925199433,AUTHORITY["EPSG","9122"]],
        AUTHORITY["EPSG","4617"]
    ],
    PROJECTION["Transverse_Mercator"],
    PARAMETER["latitude_of_origin",0],
    PARAMETER["central_meridian",-111],
    PARAMETER["scale_factor",0.9999],
    PARAMETER["false_easting",0],
    PARAMETER["false_northing",0],
    UNIT["metre",1,AUTHORITY["EPSG","9001"]],
    AXIS["Easting",EAST],
    AXIS["Northing",NORTH],
    AUTHORITY["EPSG","3779"]
]

Related Coordinate Systems

Available Transformations (14)

Transformations inherited from base CRS: EPSG:4617 (NAD83(CSRS))

Transformation Source → Target Accuracy (m)
4617 → 4326 1
4269 → 4617 2
4617 → 4326 2
4122 → 4617 1.5
4122 → 4617 1.5
4122 → 4617 1.5
4267 → 4617 1.5
4267 → 4617 1.5
4267 → 4617 0.8
4269 → 4617 1.5

Other CRS using NAD83 Canadian Spatial Reference System (70)

Frequently Asked Questions

How do I add EPSG:3779 to GeoServer?

Add the following definition to your GeoServer configuration:

3779=PROJCS["NAD83(CSRS) / Alberta 3TM ref merid 111 W",GEOGCS["NAD83(CSRS)",DATUM["NAD83_Canadian_Spatial_Reference_System",SPHEROID["GRS 1980",6378137,298.257222101],TOWGS84[-0.991,1.9072,0.5129,-1.25033E-07,-4.6785E-08,-5.6529E-08,0]],PRIMEM["Greenwich",0,AUTHORITY["EPSG","8901"]],UNIT["degree",0.0174532925199433,AUTHORITY["EPSG","9122"]],AUTHORITY["EPSG","4617"]],PROJECTION["Transverse_Mercator"],PARAMETER["latitude_of_origin",0],PARAMETER["central_meridian",-111],PARAMETER["scale_factor",0.9999],PARAMETER["false_easting",0],PARAMETER["false_northing",0],UNIT["metre",1,AUTHORITY["EPSG","9001"]],AXIS["Easting",EAST],AXIS["Northing",NORTH],AUTHORITY["EPSG","3779"]]
Read the full GeoServer guide →

How do I add EPSG:3779 to PostGIS?

Add the following definition to your PostGIS configuration:

INSERT INTO spatial_ref_sys (srid, auth_name, auth_srid, proj4text, srtext)
VALUES (3779, 'EPSG', 3779, '+proj=tmerc +lat_0=0 +lon_0=-111 +k=0.9999 +x_0=0 +y_0=0 +ellps=GRS80 +towgs84=-0.991,1.9072,0.5129,-1.25033e-07,-4.6785e-08,-5.6529e-08,0 +units=m +no_defs +type=crs', 'PROJCS["NAD83(CSRS) / Alberta 3TM ref merid 111 W",GEOGCS["NAD83(CSRS)",DATUM["NAD83_Canadian_Spatial_Reference_System",SPHEROID["GRS 1980",6378137,298.257222101],TOWGS84[-0.991,1.9072,0.5129,-1.25033E-07,-4.6785E-08,-5.6529E-08,0]],PRIMEM["Greenwich",0,AUTHORITY["EPSG","8901"]],UNIT["degree",0.0174532925199433,AUTHORITY["EPSG","9122"]],AUTHORITY["EPSG","4617"]],PROJECTION["Transverse_Mercator"],PARAMETER["latitude_of_origin",0],PARAMETER["central_meridian",-111],PARAMETER["scale_factor",0.9999],PARAMETER["false_easting",0],PARAMETER["false_northing",0],UNIT["metre",1,AUTHORITY["EPSG","9001"]],AXIS["Easting",EAST],AXIS["Northing",NORTH],AUTHORITY["EPSG","3779"]]');
Read the full PostGIS guide →

How do I add EPSG:3779 to MapServer?

Add the following definition to your MapServer configuration:

PROJECTION
  "+proj=tmerc"
  "+lat_0=0"
  "+lon_0=-111"
  "+k=0.9999"
  "+x_0=0"
  "+y_0=0"
  "+ellps=GRS80"
  "+towgs84=-0.991,1.9072,0.5129,-1.25033e-07,-4.6785e-08,-5.6529e-08,0"
  "+units=m"
  "+no_defs"
  "+type=crs"
END
Read the full MapServer guide →

How do I use EPSG:3779 with Proj4js?

Add the following definition to your Proj4js configuration:

proj4.defs("EPSG:3779", "+proj=tmerc +lat_0=0 +lon_0=-111 +k=0.9999 +x_0=0 +y_0=0 +ellps=GRS80 +towgs84=-0.991,1.9072,0.5129,-1.25033e-07,-4.6785e-08,-5.6529e-08,0 +units=m +no_defs +type=crs");
Read the full Proj4js guide →