EPSG:6491 NAD83(2011) / Massachusetts Mainland
Projected system (Lambert Conic Conformal (2SP)) in use: USA - Massachusetts - SPCS - mainland. The full definition below, and conversion in one click.
| Code | EPSG:6491 |
|---|---|
| Name | NAD83(2011) / Massachusetts Mainland |
| Type | Projected system — Lambert Conic Conformal (2SP) |
| Area of use |
USA - Massachusetts - SPCS - mainland United States (USA) - Massachusetts onshore - counties of Barnstable; Berkshire; Bristol; Essex; Franklin; Hampden; Hampshire; Middlesex; Norfolk; Plymouth; Suffolk; Worcester. |
| Bounds | W -73,50° · S 41,46° · E -69,86° · N 42,89° |
| Countries | United States |
| Datum | NAD83 (National Spatial Reference System 2011) |
| Ellipsoid | GRS 1980 a = 6378137 m · 1/f = 298.257222101 |
| Base geographic system | EPSG:6318 — NAD83(2011) |
| Unit | metre (X east, Y north) |
| Transformation to WGS 84 | NAD83(2011) to WGS 84 (1) (EPSG:9774) — accuracy 2 m |
| Scope | Engineering survey, topographic mapping. |
Projection parameters
| Parameter | Value | Unit |
|---|---|---|
| Latitude of false origin | 41 | degree |
| Longitude of false origin | -71.5 | degree |
| Latitude of 1st standard parallel | 42.68333333333333 | degree |
| Latitude of 2nd standard parallel | 41.71666666666667 | degree |
| Easting at false origin | 200000 | metre |
| Northing at false origin | 750000 | metre |
proj4 definition
+proj=lcc +lat_0=41 +lon_0=-71.5 +lat_1=42.6833333333333 +lat_2=41.7166666666667 +x_0=200000 +y_0=750000 +ellps=GRS80 +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:6491.
WKT (ESRI format, the .prj content)
PROJCS["NAD_1983_2011_StatePlane_Massachusetts_Mainland_FIPS_2001",GEOGCS["GCS_NAD_1983_2011",DATUM["D_NAD_1983_2011",SPHEROID["GRS_1980",6378137.0,298.257222101]],PRIMEM["Greenwich",0.0],UNIT["Degree",0.0174532925199433]],PROJECTION["Lambert_Conformal_Conic"],PARAMETER["False_Easting",200000.0],PARAMETER["False_Northing",750000.0],PARAMETER["Central_Meridian",-71.5],PARAMETER["Standard_Parallel_1",42.6833333333333],PARAMETER["Standard_Parallel_2",41.7166666666667],PARAMETER["Latitude_Of_Origin",41.0],UNIT["Meter",1.0]]Other systems — United States
- EPSG:6482NAD83(2011) / Maine CS2000 West
- EPSG:6483NAD83(2011) / Maine East
- EPSG:6484NAD83(2011) / Maine East (ftUS)
- EPSG:6485NAD83(2011) / Maine West
- EPSG:6486NAD83(2011) / Maine West (ftUS)
- EPSG:6487NAD83(2011) / Maryland
- EPSG:6488NAD83(2011) / Maryland (ftUS)
- EPSG:6489NAD83(2011) / Massachusetts Island
- EPSG:6490NAD83(2011) / Massachusetts Island (ftUS)
- EPSG:6492NAD83(2011) / Massachusetts Mainland (ftUS)
- EPSG:6493NAD83(2011) / Michigan Central
- EPSG:6494NAD83(2011) / Michigan Central (ft)
- EPSG:6495NAD83(2011) / Michigan North
- EPSG:6496NAD83(2011) / Michigan North (ft)
- EPSG:6497NAD83(2011) / Michigan Oblique Mercator
- EPSG:6498NAD83(2011) / Michigan South
- EPSG:6499NAD83(2011) / Michigan South (ft)
- EPSG:6500NAD83(2011) / Minnesota Central
Source: EPSG registry v11.022 (IOGP), through the PROJ database. Always check a code on epsg.org before contractual work.