EPSG systems

EPSG:6307 NAD83(CORS96) / Puerto Rico and Virgin Is.

Projected system (Lambert Conic Conformal (2SP)) in use: Caribbean - Puerto Rico and US Virgin Islands - onshore. The full definition below, and conversion in one click.

EPSG publishes no simple transformation to WGS 84 for this datum: conversion works on the ellipsoid alone and can be off by tens of metres.

System record
CodeEPSG:6307
NameNAD83(CORS96) / Puerto Rico and Virgin Is.
TypeProjected system — Lambert Conic Conformal (2SP)
Area of use Caribbean - Puerto Rico and US Virgin Islands - onshore
Puerto Rico and US Virgin Islands - onshore.
Bounds W -67,97° · S 17,62° · E -64,51° · N 18,57°
Countries U.S. Virgin Islands, Puerto Rico
DatumNAD83 (Continuously Operating Reference Station 1996)
Ellipsoid GRS 1980 a = 6378137 m · 1/f = 298.257222101
Base geographic system EPSG:6783 — NAD83(CORS96)
Unit metre (X east, Y north)
Transformation to WGS 84 No simple transformation published (ellipsoid alone)
ScopeEngineering survey, topographic mapping.

Projection parameters

ParameterValueUnit
Latitude of false origin17.833333333333332degree
Longitude of false origin-66.43333333333334degree
Latitude of 1st standard parallel18.433333333333334degree
Latitude of 2nd standard parallel18.033333333333335degree
Easting at false origin200000metre
Northing at false origin200000metre

proj4 definition

+proj=lcc +lat_0=17.8333333333333 +lon_0=-66.4333333333333 +lat_1=18.4333333333333 +lat_2=18.0333333333333 +x_0=200000 +y_0=200000 +ellps=GRS80 +units=m +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:6307.

WKT (ESRI format, the .prj content)

PROJCS["NAD_1983_CORS96_SPCS_Puerto_Rico_and_Virgin_Islands",GEOGCS["GCS_NAD_1983_CORS96",DATUM["D_NAD_1983_CORS96",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",200000.0],PARAMETER["Central_Meridian",-66.4333333333333],PARAMETER["Standard_Parallel_1",18.4333333333333],PARAMETER["Standard_Parallel_2",18.0333333333333],PARAMETER["Latitude_Of_Origin",17.8333333333333],UNIT["Meter",1.0]]

All systems — U.S. Virgin Islands

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