EPSG systems

EPSG:6894 Gambia

Geographic system in latitude and longitude, in use: Gambia - onshore. Datum, ellipsoid and transformation to WGS 84 below.

System record
CodeEPSG:6894
NameGambia
TypeGeographic system
Area of use Gambia - onshore
Bounds W -16,88° · S 13,05° · E -13,79° · N 13,83°
Countries Gambia
DatumGambia
Ellipsoid Clarke 1880 (RGS) a = 6378249.145 m · 1/f = 293.465
Unit degree (Lat north, Lon east)
Transformation to WGS 84 Gambia to WGS 84 (1) (EPSG:6913) — accuracy 43 m
ScopeTopographic mapping.

proj4 definition

+proj=longlat +a=6378249.145 +rf=293.465 +towgs84=-63,176,185 +no_defs

Paste it into QGIS, proj4js, PostGIS (spatial_ref_sys) or GDAL. +towgs84 carries the EPSG transformation to WGS 84; the official code stays EPSG:6894.

WKT (ESRI format, the .prj content)

GEOGCS["GCS_Gambia",DATUM["D_Gambia",SPHEROID["Clarke_1880_RGS",6378249.145,293.465]],PRIMEM["Greenwich",0.0],UNIT["Degree",0.0174532925199433]]

Source: EPSG registry v11.022 (IOGP), through the PROJ database. Always check a code on epsg.org before contractual work.