EPSG systems

EPSG:4161 Pampa del Castillo

Geographic system in latitude and longitude, in use: Argentina - 42.5°S to 50.3°S. Datum, ellipsoid and transformation to WGS 84 below.

System record
CodeEPSG:4161
NamePampa del Castillo
TypeGeographic system
Area of use Argentina - 42.5°S to 50.3°S
Argentina - Chibut province south of approximately 42°30'S and Santa Cruz province north of approximately 50°20'S.
Bounds W -73,59° · S -50,34° · E -65,47° · N -42,49°
Countries Argentina
DatumPampa del Castillo
Ellipsoid International 1924 a = 6378388 m · 1/f = 297
Unit degree (Lat north, Lon east)
Transformation to WGS 84 Pampa del Castillo to WGS 84 (2) (EPSG:9259) — accuracy 2.5 m
ScopeOil and gas exploration and production.

proj4 definition

+proj=longlat +ellps=intl +towgs84=-233.43,6.65,173.64 +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:4161.

WKT (ESRI format, the .prj content)

GEOGCS["GCS_Pampa_del_Castillo",DATUM["D_Pampa_del_Castillo",SPHEROID["International_1924",6378388.0,297.0]],PRIMEM["Greenwich",0.0],UNIT["Degree",0.0174532925199433]]

All systems — Argentina

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