EPSG:4608 — NAD27(76)

Geographic 2D · Canada - Ontario

Export Formats

OGC WKT

GEOGCS[
    "NAD27(76)",
    DATUM[
        "North_American_Datum_1927_1976",
        SPHEROID["Clarke 1866",6378206.4,294.978698213898],
        EXTENSION["PROJ4_GRIDS","May76v20.gsb"]
    ],
    PRIMEM["Greenwich",0,AUTHORITY["EPSG","8901"]],
    UNIT["degree",0.0174532925199433,AUTHORITY["EPSG","9122"]],
    AUTHORITY["EPSG","4608"]
]

WKT2

GEOGCRS[
    "NAD27(76)",
    DATUM[
        "North American Datum 1927 (1976)",
        ELLIPSOID[
            "Clarke 1866",
            6378206.4,
            294.978698213898,
            LENGTHUNIT["metre",1,ID["EPSG",9001]],
            ID["EPSG",7008]
        ],
        ID["EPSG",6608]
    ],
    CS[ellipsoidal,2,ID["EPSG",6422]],
    AXIS["Geodetic latitude (Lat)",north],
    AXIS["Geodetic longitude (Lon)",east],
    ANGLEUNIT["degree",0.0174532925199433,ID["EPSG",9102]],
    ID["EPSG",4608]
]

PROJ.4

+proj=longlat +ellps=clrk66 +nadgrids=May76v20.gsb +no_defs +type=crs

Proj4js

How to add a projection to Proj4js? →

proj4.defs("EPSG:4608", "+proj=longlat +ellps=clrk66 +nadgrids=May76v20.gsb +no_defs +type=crs");

JSON

{
  "type": "CoordinateReferenceSystem",
  "code": 4608,
  "name": "NAD27(76)",
  "kind": "geographic 2D",
  "area": "Canada - Ontario",
  "unit": "degree (supplier to define representation)",
  "bbox": [
    41.67,
    -95.16,
    56.9,
    -74.35
  ],
  "proj4": "+proj=longlat +ellps=clrk66 +nadgrids=May76v20.gsb +no_defs +type=crs"
}

PostGIS

How to add a projection to PostGIS? →

INSERT INTO spatial_ref_sys (srid, auth_name, auth_srid, proj4text, srtext)
VALUES (4608, 'EPSG', 4608, '+proj=longlat +ellps=clrk66 +nadgrids=May76v20.gsb +no_defs +type=crs', 'GEOGCS["NAD27(76)",DATUM["North_American_Datum_1927_1976",SPHEROID["Clarke 1866",6378206.4,294.978698213898],EXTENSION["PROJ4_GRIDS","May76v20.gsb"]],PRIMEM["Greenwich",0,AUTHORITY["EPSG","8901"]],UNIT["degree",0.0174532925199433,AUTHORITY["EPSG","9122"]],AUTHORITY["EPSG","4608"]]');

MapServer

How to add a projection to MapServer? →

PROJECTION
  "+proj=longlat"
  "+ellps=clrk66"
  "+nadgrids=May76v20.gsb"
  "+no_defs"
  "+type=crs"
END

GeoServer

How to add a projection to GeoServer? →

4608=GEOGCS["NAD27(76)",DATUM["North_American_Datum_1927_1976",SPHEROID["Clarke 1866",6378206.4,294.978698213898],EXTENSION["PROJ4_GRIDS","May76v20.gsb"]],PRIMEM["Greenwich",0,AUTHORITY["EPSG","8901"]],UNIT["degree",0.0174532925199433,AUTHORITY["EPSG","9122"]],AUTHORITY["EPSG","4608"]]

Related Coordinate Systems

Available Transformations (4)

Transformation	Source → Target	Accuracy (m)
NAD27(76) to NAD83 (1)	4608 → 4269	1
NAD27(76) to NAD83(CSRS)v3 (1)	4608 → 8240	1
NAD27(76) to WGS 84 (1)	4608 → 4326	2
NAD27(76) to WGS 84 (1) Deprecated	4608 → 4326	—

Other CRS using North American Datum 1927 (1976) (14)

Frequently Asked Questions

How do I add EPSG:4608 to GeoServer?

Add the following definition to your GeoServer configuration:

4608=GEOGCS["NAD27(76)",DATUM["North_American_Datum_1927_1976",SPHEROID["Clarke 1866",6378206.4,294.978698213898],EXTENSION["PROJ4_GRIDS","May76v20.gsb"]],PRIMEM["Greenwich",0,AUTHORITY["EPSG","8901"]],UNIT["degree",0.0174532925199433,AUTHORITY["EPSG","9122"]],AUTHORITY["EPSG","4608"]]

Read the full GeoServer guide →

How do I add EPSG:4608 to PostGIS?

Add the following definition to your PostGIS configuration:

INSERT INTO spatial_ref_sys (srid, auth_name, auth_srid, proj4text, srtext)
VALUES (4608, 'EPSG', 4608, '+proj=longlat +ellps=clrk66 +nadgrids=May76v20.gsb +no_defs +type=crs', 'GEOGCS["NAD27(76)",DATUM["North_American_Datum_1927_1976",SPHEROID["Clarke 1866",6378206.4,294.978698213898],EXTENSION["PROJ4_GRIDS","May76v20.gsb"]],PRIMEM["Greenwich",0,AUTHORITY["EPSG","8901"]],UNIT["degree",0.0174532925199433,AUTHORITY["EPSG","9122"]],AUTHORITY["EPSG","4608"]]');

Read the full PostGIS guide →

How do I add EPSG:4608 to MapServer?

Add the following definition to your MapServer configuration:

PROJECTION
  "+proj=longlat"
  "+ellps=clrk66"
  "+nadgrids=May76v20.gsb"
  "+no_defs"
  "+type=crs"
END

Read the full MapServer guide →

How do I use EPSG:4608 with Proj4js?

Add the following definition to your Proj4js configuration:

proj4.defs("EPSG:4608", "+proj=longlat +ellps=clrk66 +nadgrids=May76v20.gsb +no_defs +type=crs");

Read the full Proj4js guide →