EPSG:3175 — NAD83 / Great Lakes and St Lawrence Albers
Projected · North America - Great Lakes basin and St Lawrence Seaway
Export Formats
OGC WKT
PROJCS[
"NAD83 / Great Lakes and St Lawrence Albers",
GEOGCS[
"NAD83",
DATUM[
"North_American_Datum_1983",
SPHEROID["GRS 1980",6378137,298.257222101],
TOWGS84[0,0,0,0,0,0,0]
],
PRIMEM["Greenwich",0,AUTHORITY["EPSG","8901"]],
UNIT["degree",0.0174532925199433,AUTHORITY["EPSG","9122"]],
AUTHORITY["EPSG","4269"]
],
PROJECTION["Albers_Conic_Equal_Area"],
PARAMETER["latitude_of_center",45.568977],
PARAMETER["longitude_of_center",-83.248627],
PARAMETER["standard_parallel_1",42.122774],
PARAMETER["standard_parallel_2",49.01518],
PARAMETER["false_easting",1000000],
PARAMETER["false_northing",1000000],
UNIT["metre",1,AUTHORITY["EPSG","9001"]],
AXIS["Easting",EAST],
AXIS["Northing",NORTH],
AUTHORITY["EPSG","3175"]
]Related Coordinate Systems (18)
Available Transformations (157)
Transformations inherited from base CRS: EPSG:4269 (NAD83)
Other CRS using North American Datum 1983 (339)
Frequently Asked Questions
How do I add EPSG:3175 to GeoServer?
Add the following definition to your GeoServer configuration:
3175=PROJCS["NAD83 / Great Lakes and St Lawrence Albers",GEOGCS["NAD83",DATUM["North_American_Datum_1983",SPHEROID["GRS 1980",6378137,298.257222101],TOWGS84[0,0,0,0,0,0,0]],PRIMEM["Greenwich",0,AUTHORITY["EPSG","8901"]],UNIT["degree",0.0174532925199433,AUTHORITY["EPSG","9122"]],AUTHORITY["EPSG","4269"]],PROJECTION["Albers_Conic_Equal_Area"],PARAMETER["latitude_of_center",45.568977],PARAMETER["longitude_of_center",-83.248627],PARAMETER["standard_parallel_1",42.122774],PARAMETER["standard_parallel_2",49.01518],PARAMETER["false_easting",1000000],PARAMETER["false_northing",1000000],UNIT["metre",1,AUTHORITY["EPSG","9001"]],AXIS["Easting",EAST],AXIS["Northing",NORTH],AUTHORITY["EPSG","3175"]] Read the full GeoServer guide →
How do I add EPSG:3175 to PostGIS?
Add the following definition to your PostGIS configuration:
INSERT INTO spatial_ref_sys (srid, auth_name, auth_srid, proj4text, srtext)
VALUES (3175, 'EPSG', 3175, '+proj=aea +lat_0=45.568977 +lon_0=-83.248627 +lat_1=42.122774 +lat_2=49.01518 +x_0=1000000 +y_0=1000000 +ellps=GRS80 +towgs84=0,0,0,0,0,0,0 +units=m +no_defs +type=crs', 'PROJCS["NAD83 / Great Lakes and St Lawrence Albers",GEOGCS["NAD83",DATUM["North_American_Datum_1983",SPHEROID["GRS 1980",6378137,298.257222101],TOWGS84[0,0,0,0,0,0,0]],PRIMEM["Greenwich",0,AUTHORITY["EPSG","8901"]],UNIT["degree",0.0174532925199433,AUTHORITY["EPSG","9122"]],AUTHORITY["EPSG","4269"]],PROJECTION["Albers_Conic_Equal_Area"],PARAMETER["latitude_of_center",45.568977],PARAMETER["longitude_of_center",-83.248627],PARAMETER["standard_parallel_1",42.122774],PARAMETER["standard_parallel_2",49.01518],PARAMETER["false_easting",1000000],PARAMETER["false_northing",1000000],UNIT["metre",1,AUTHORITY["EPSG","9001"]],AXIS["Easting",EAST],AXIS["Northing",NORTH],AUTHORITY["EPSG","3175"]]'); Read the full PostGIS guide →
How do I add EPSG:3175 to MapServer?
Add the following definition to your MapServer configuration:
PROJECTION
"+proj=aea"
"+lat_0=45.568977"
"+lon_0=-83.248627"
"+lat_1=42.122774"
"+lat_2=49.01518"
"+x_0=1000000"
"+y_0=1000000"
"+ellps=GRS80"
"+towgs84=0,0,0,0,0,0,0"
"+units=m"
"+no_defs"
"+type=crs"
END Read the full MapServer guide →
How do I use EPSG:3175 with Proj4js?
Add the following definition to your Proj4js configuration:
proj4.defs("EPSG:3175", "+proj=aea +lat_0=45.568977 +lon_0=-83.248627 +lat_1=42.122774 +lat_2=49.01518 +x_0=1000000 +y_0=1000000 +ellps=GRS80 +towgs84=0,0,0,0,0,0,0 +units=m +no_defs +type=crs"); Read the full Proj4js guide →