EPSG:4174 — Sierra Leone 1924

Geographic 2D · Sierra Leone - Freetown Peninsula

Export Formats

OGC WKT

GEOGCS[
    "Sierra Leone 1924",
    DATUM[
        "Sierra_Leone_Colony_1924",
        SPHEROID["War Office",6378300,296,AUTHORITY["EPSG","7029"]],
        AUTHORITY["EPSG","6174"]
    ],
    PRIMEM["Greenwich",0,AUTHORITY["EPSG","8901"]],
    UNIT["degree",0.0174532925199433,AUTHORITY["EPSG","9122"]],
    AUTHORITY["EPSG","4174"]
]

WKT2

GEOGCRS[
    "Sierra Leone 1924",
    DATUM[
        "Sierra Leone Colony 1924",
        ELLIPSOID[
            "War Office",
            6378300,
            296,
            LENGTHUNIT["metre",1,ID["EPSG",9001]],
            ID["EPSG",7029]
        ],
        ID["EPSG",6174]
    ],
    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",4174]
]

PROJ.4

+proj=longlat +a=6378300 +rf=296 +no_defs +type=crs

Proj4js

How to add a projection to Proj4js? →

proj4.defs("EPSG:4174", "+proj=longlat +a=6378300 +rf=296 +no_defs +type=crs");

JSON

{
  "type": "CoordinateReferenceSystem",
  "code": 4174,
  "name": "Sierra Leone 1924",
  "kind": "geographic 2D",
  "area": "Sierra Leone - Freetown Peninsula",
  "unit": "degree (supplier to define representation)",
  "bbox": [
    8.32,
    -13.34,
    8.55,
    -13.13
  ],
  "proj4": "+proj=longlat +a=6378300 +rf=296 +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 (4174, 'EPSG', 4174, '+proj=longlat +a=6378300 +rf=296 +no_defs +type=crs', 'GEOGCS["Sierra Leone 1924",DATUM["Sierra_Leone_Colony_1924",SPHEROID["War Office",6378300,296,AUTHORITY["EPSG","7029"]],AUTHORITY["EPSG","6174"]],PRIMEM["Greenwich",0,AUTHORITY["EPSG","8901"]],UNIT["degree",0.0174532925199433,AUTHORITY["EPSG","9122"]],AUTHORITY["EPSG","4174"]]');

MapServer

How to add a projection to MapServer? →

PROJECTION
  "+proj=longlat"
  "+a=6378300"
  "+rf=296"
  "+no_defs"
  "+type=crs"
END

GeoServer

How to add a projection to GeoServer? →

4174=GEOGCS["Sierra Leone 1924",DATUM["Sierra_Leone_Colony_1924",SPHEROID["War Office",6378300,296,AUTHORITY["EPSG","7029"]],AUTHORITY["EPSG","6174"]],PRIMEM["Greenwich",0,AUTHORITY["EPSG","8901"]],UNIT["degree",0.0174532925199433,AUTHORITY["EPSG","9122"]],AUTHORITY["EPSG","4174"]]

Other CRS using Sierra Leone Colony 1924

Frequently Asked Questions

How do I add EPSG:4174 to GeoServer?

Add the following definition to your GeoServer configuration:

4174=GEOGCS["Sierra Leone 1924",DATUM["Sierra_Leone_Colony_1924",SPHEROID["War Office",6378300,296,AUTHORITY["EPSG","7029"]],AUTHORITY["EPSG","6174"]],PRIMEM["Greenwich",0,AUTHORITY["EPSG","8901"]],UNIT["degree",0.0174532925199433,AUTHORITY["EPSG","9122"]],AUTHORITY["EPSG","4174"]]

Read the full GeoServer guide →

How do I add EPSG:4174 to PostGIS?

Add the following definition to your PostGIS configuration:

INSERT INTO spatial_ref_sys (srid, auth_name, auth_srid, proj4text, srtext)
VALUES (4174, 'EPSG', 4174, '+proj=longlat +a=6378300 +rf=296 +no_defs +type=crs', 'GEOGCS["Sierra Leone 1924",DATUM["Sierra_Leone_Colony_1924",SPHEROID["War Office",6378300,296,AUTHORITY["EPSG","7029"]],AUTHORITY["EPSG","6174"]],PRIMEM["Greenwich",0,AUTHORITY["EPSG","8901"]],UNIT["degree",0.0174532925199433,AUTHORITY["EPSG","9122"]],AUTHORITY["EPSG","4174"]]');

Read the full PostGIS guide →

How do I add EPSG:4174 to MapServer?

Add the following definition to your MapServer configuration:

PROJECTION
  "+proj=longlat"
  "+a=6378300"
  "+rf=296"
  "+no_defs"
  "+type=crs"
END

Read the full MapServer guide →

How do I use EPSG:4174 with Proj4js?

Add the following definition to your Proj4js configuration:

proj4.defs("EPSG:4174", "+proj=longlat +a=6378300 +rf=296 +no_defs +type=crs");

Read the full Proj4js guide →