EPSG:3174 NAD83 / Great Lakes Albers
Projected system (Albers Equal Area) in use: North America - Great Lakes basin. The full definition below, and conversion in one click.
| Code | EPSG:3174 |
|---|---|
| Name | NAD83 / Great Lakes Albers |
| Type | Projected system — Albers Equal Area |
| Area of use |
North America - Great Lakes basin Canada and United States (USA) - Great Lakes basin. |
| Bounds | W -93,17° · S 40,99° · E -74,47° · N 50,74° |
| Countries | United States, Canada |
| Datum | North American Datum 1983 |
| Ellipsoid | GRS 1980 a = 6378137 m · 1/f = 298.257222101 |
| Base geographic system | EPSG:4269 — NAD83 |
| Unit | metre (X east, Y north) |
| Transformation to WGS 84 | NAD83 to WGS 84 (1) (EPSG:1188) — accuracy 4 m |
| Scope | Basin-wide mapping and analysis. |
Projection parameters
| Parameter | Value | Unit |
|---|---|---|
| Latitude of false origin | 45.568977 | degree |
| Longitude of false origin | -84.455955 | degree |
| Latitude of 1st standard parallel | 42.122774 | degree |
| Latitude of 2nd standard parallel | 49.01518 | degree |
| Easting at false origin | 1000000 | metre |
| Northing at false origin | 1000000 | metre |
proj4 definition
+proj=aea +lat_0=45.568977 +lon_0=-84.455955 +lat_1=42.122774 +lat_2=49.01518 +x_0=1000000 +y_0=1000000 +a=6378137 +rf=298.257222101 +units=m +towgs84=0,0,0 +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:3174.
WKT (ESRI format, the .prj content)
PROJCS["NAD_1983_Great_Lakes_Basin_Albers",GEOGCS["GCS_North_American_1983",DATUM["D_North_American_1983",SPHEROID["GRS_1980",6378137.0,298.257222101]],PRIMEM["Greenwich",0.0],UNIT["Degree",0.0174532925199433]],PROJECTION["Albers"],PARAMETER["False_Easting",1000000.0],PARAMETER["False_Northing",1000000.0],PARAMETER["Central_Meridian",-84.455955],PARAMETER["Standard_Parallel_1",42.122774],PARAMETER["Standard_Parallel_2",49.01518],PARAMETER["Latitude_Of_Origin",45.568977],UNIT["Meter",1.0]]Other systems — United States
- EPSG:3074NAD83 / Maine CS2000 West
- EPSG:3075NAD83(HARN) / Maine CS2000 East
- EPSG:3077NAD83(HARN) / Maine CS2000 West
- EPSG:3078NAD83 / Michigan Oblique Mercator
- EPSG:3079NAD83(HARN) / Michigan Oblique Mercator
- EPSG:3080NAD27 / Shackleford
- EPSG:3081NAD83 / Texas State Mapping System
- EPSG:3082NAD83 / Texas Centric Lambert Conformal
- EPSG:3083NAD83 / Texas Centric Albers Equal Area
- EPSG:3084NAD83(HARN) / Texas Centric Lambert Conformal
- EPSG:3085NAD83(HARN) / Texas Centric Albers Equal Area
- EPSG:3086NAD83 / Florida GDL Albers
- EPSG:3087NAD83(HARN) / Florida GDL Albers
- EPSG:3088NAD83 / Kentucky Single Zone
- EPSG:3089NAD83 / Kentucky Single Zone (ftUS)
- EPSG:3090NAD83(HARN) / Kentucky Single Zone
- EPSG:3091NAD83(HARN) / Kentucky Single Zone (ftUS)
- EPSG:3175NAD83 / Great Lakes and St Lawrence Albers
Source: EPSG registry v11.022 (IOGP), through the PROJ database. Always check a code on epsg.org before contractual work.