EPSG:8720 — NAD83 / Colorado North (ftUS) + NAVD88 height (ftUS)

Compound · USA - Colorado - SPCS - N

Export Formats

OGC WKT

COMPD_CS[
    "NAD83 / Colorado North (ftUS) + NAVD88 height (ftUS)",
    PROJCS[
        "NAD83 / Colorado North (ftUS)",
        GEOGCS[
            "NAD83",
            DATUM[
                "North_American_Datum_1983",
                SPHEROID["GRS 1980",6378137,298.257222101,AUTHORITY["EPSG","7019"]],
                AUTHORITY["EPSG","6269"]
            ],
            PRIMEM["Greenwich",0,AUTHORITY["EPSG","8901"]],
            UNIT["degree",0.0174532925199433,AUTHORITY["EPSG","9122"]],
            AUTHORITY["EPSG","4269"]
        ],
        PROJECTION["Lambert_Conformal_Conic_2SP"],
        PARAMETER["latitude_of_origin",39.3333333333333],
        PARAMETER["central_meridian",-105.5],
        PARAMETER["standard_parallel_1",40.7833333333333],
        PARAMETER["standard_parallel_2",39.7166666666667],
        PARAMETER["false_easting",3000000],
        PARAMETER["false_northing",1000000],
        UNIT["US survey foot",0.304800609601219,AUTHORITY["EPSG","9003"]],
        AXIS["Easting",EAST],
        AXIS["Northing",NORTH],
        AUTHORITY["EPSG","2231"]
    ],
    VERT_CS[
        "NAVD88 height (ftUS)",
        VERT_DATUM[
            "North American Vertical Datum 1988",
            2005,
            AUTHORITY["EPSG","5103"]
        ],
        UNIT["US survey foot",0.304800609601219,AUTHORITY["EPSG","9003"]],
        AXIS["Gravity-related height",UP],
        AUTHORITY["EPSG","6360"]
    ],
    AUTHORITY["EPSG","8720"]
]

WKT2

COMPOUNDCRS[
    "NAD83 / Colorado North (ftUS) + NAVD88 height (ftUS)",
    PROJCRS[
        "NAD83 / Colorado North (ftUS)",
        BASEGEOGCRS[
            "NAD83",
            DATUM[
                "North American Datum 1983",
                ELLIPSOID[
                    "GRS 1980",
                    6378137,
                    298.257222101,
                    LENGTHUNIT["metre",1,ID["EPSG",9001]],
                    ID["EPSG",7019]
                ],
                ID["EPSG",6269]
            ],
            ID["EPSG",4269]
        ],
        CONVERSION[
            "SPCS83 Colorado North zone (US survey foot)",
            METHOD["Lambert Conic Conformal (2SP)",ID["EPSG",9802]],
            PARAMETER[
                "Latitude of false origin",
                39.3333333333336,
                ANGLEUNIT["degree",0.0174532925199433,ID["EPSG",9102]],
                ID["EPSG",8821]
            ],
            PARAMETER[
                "Longitude of false origin",
                -105.5,
                ANGLEUNIT["degree",0.0174532925199433,ID["EPSG",9102]],
                ID["EPSG",8822]
            ],
            PARAMETER[
                "Latitude of 1st standard parallel",
                40.7833333333336,
                ANGLEUNIT["degree",0.0174532925199433,ID["EPSG",9102]],
                ID["EPSG",8823]
            ],
            PARAMETER[
                "Latitude of 2nd standard parallel",
                39.7166666666669,
                ANGLEUNIT["degree",0.0174532925199433,ID["EPSG",9102]],
                ID["EPSG",8824]
            ],
            PARAMETER[
                "Easting at false origin",
                3000000,
                LENGTHUNIT["US survey foot",0.304800609601219,ID["EPSG",9003]],
                ID["EPSG",8826]
            ],
            PARAMETER[
                "Northing at false origin",
                1000000,
                LENGTHUNIT["US survey foot",0.304800609601219,ID["EPSG",9003]],
                ID["EPSG",8827]
            ],
            ID["EPSG",15313]
        ],
        CS[Cartesian,2,ID["EPSG",4497]],
        AXIS["Easting (X)",east],
        AXIS["Northing (Y)",north],
        LENGTHUNIT["US survey foot",0.304800609601219,ID["EPSG",9003]],
        ID["EPSG",2231]
    ],
    VERTCRS[
        "NAVD88 height (ftUS)",
        BASEVERTCRS[
            "NAVD88 height",
            VDATUM["North American Vertical Datum 1988",ID["EPSG",5103]],
            ID["EPSG",5703]
        ],
        DERIVINGCONVERSION[
            "Vertical Axis Unit Conversion",
            METHOD["Change of Vertical Unit",ID["EPSG",1104]],
            ID["EPSG",7813]
        ],
        CS[vertical,1,ID["EPSG",6497]],
        AXIS["Gravity-related height (H)",up],
        LENGTHUNIT["US survey foot",0.304800609601219,ID["EPSG",9003]],
        ID["EPSG",6360]
    ],
    ID["EPSG",8720]
]

PROJ.4

+proj=lcc +lat_0=39.3333333333333 +lon_0=-105.5 +lat_1=40.7833333333333 +lat_2=39.7166666666667 +x_0=914401.828803658 +y_0=304800.609601219 +datum=NAD83 +units=us-ft +vunits=us-ft +no_defs +type=crs

Proj4js

How to add a projection to Proj4js? →

proj4.defs("EPSG:8720", "+proj=lcc +lat_0=39.3333333333333 +lon_0=-105.5 +lat_1=40.7833333333333 +lat_2=39.7166666666667 +x_0=914401.828803658 +y_0=304800.609601219 +datum=NAD83 +units=us-ft +vunits=us-ft +no_defs +type=crs");

JSON

{
  "type": "CoordinateReferenceSystem",
  "code": 8720,
  "name": "NAD83 / Colorado North (ftUS) + NAVD88 height (ftUS)",
  "kind": "compound",
  "area": "USA - Colorado - SPCS - N",
  "unit": null,
  "bbox": [
    39.56,
    -109.06,
    41.01,
    -102.04
  ],
  "proj4": "+proj=lcc +lat_0=39.3333333333333 +lon_0=-105.5 +lat_1=40.7833333333333 +lat_2=39.7166666666667 +x_0=914401.828803658 +y_0=304800.609601219 +datum=NAD83 +units=us-ft +vunits=us-ft +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 (8720, 'EPSG', 8720, '+proj=lcc +lat_0=39.3333333333333 +lon_0=-105.5 +lat_1=40.7833333333333 +lat_2=39.7166666666667 +x_0=914401.828803658 +y_0=304800.609601219 +datum=NAD83 +units=us-ft +vunits=us-ft +no_defs +type=crs', 'COMPD_CS["NAD83 / Colorado North (ftUS) + NAVD88 height (ftUS)",PROJCS["NAD83 / Colorado North (ftUS)",GEOGCS["NAD83",DATUM["North_American_Datum_1983",SPHEROID["GRS 1980",6378137,298.257222101,AUTHORITY["EPSG","7019"]],AUTHORITY["EPSG","6269"]],PRIMEM["Greenwich",0,AUTHORITY["EPSG","8901"]],UNIT["degree",0.0174532925199433,AUTHORITY["EPSG","9122"]],AUTHORITY["EPSG","4269"]],PROJECTION["Lambert_Conformal_Conic_2SP"],PARAMETER["latitude_of_origin",39.3333333333333],PARAMETER["central_meridian",-105.5],PARAMETER["standard_parallel_1",40.7833333333333],PARAMETER["standard_parallel_2",39.7166666666667],PARAMETER["false_easting",3000000],PARAMETER["false_northing",1000000],UNIT["US survey foot",0.304800609601219,AUTHORITY["EPSG","9003"]],AXIS["Easting",EAST],AXIS["Northing",NORTH],AUTHORITY["EPSG","2231"]],VERT_CS["NAVD88 height (ftUS)",VERT_DATUM["North American Vertical Datum 1988",2005,AUTHORITY["EPSG","5103"]],UNIT["US survey foot",0.304800609601219,AUTHORITY["EPSG","9003"]],AXIS["Gravity-related height",UP],AUTHORITY["EPSG","6360"]],AUTHORITY["EPSG","8720"]]');

MapServer

How to add a projection to MapServer? →

PROJECTION
  "+proj=lcc"
  "+lat_0=39.3333333333333"
  "+lon_0=-105.5"
  "+lat_1=40.7833333333333"
  "+lat_2=39.7166666666667"
  "+x_0=914401.828803658"
  "+y_0=304800.609601219"
  "+datum=NAD83"
  "+units=us-ft"
  "+vunits=us-ft"
  "+no_defs"
  "+type=crs"
END

GeoServer

How to add a projection to GeoServer? →

8720=COMPD_CS["NAD83 / Colorado North (ftUS) + NAVD88 height (ftUS)",PROJCS["NAD83 / Colorado North (ftUS)",GEOGCS["NAD83",DATUM["North_American_Datum_1983",SPHEROID["GRS 1980",6378137,298.257222101,AUTHORITY["EPSG","7019"]],AUTHORITY["EPSG","6269"]],PRIMEM["Greenwich",0,AUTHORITY["EPSG","8901"]],UNIT["degree",0.0174532925199433,AUTHORITY["EPSG","9122"]],AUTHORITY["EPSG","4269"]],PROJECTION["Lambert_Conformal_Conic_2SP"],PARAMETER["latitude_of_origin",39.3333333333333],PARAMETER["central_meridian",-105.5],PARAMETER["standard_parallel_1",40.7833333333333],PARAMETER["standard_parallel_2",39.7166666666667],PARAMETER["false_easting",3000000],PARAMETER["false_northing",1000000],UNIT["US survey foot",0.304800609601219,AUTHORITY["EPSG","9003"]],AXIS["Easting",EAST],AXIS["Northing",NORTH],AUTHORITY["EPSG","2231"]],VERT_CS["NAVD88 height (ftUS)",VERT_DATUM["North American Vertical Datum 1988",2005,AUTHORITY["EPSG","5103"]],UNIT["US survey foot",0.304800609601219,AUTHORITY["EPSG","9003"]],AXIS["Gravity-related height",UP],AUTHORITY["EPSG","6360"]],AUTHORITY["EPSG","8720"]]

Frequently Asked Questions

How do I add EPSG:8720 to GeoServer?

Add the following definition to your GeoServer configuration:

8720=COMPD_CS["NAD83 / Colorado North (ftUS) + NAVD88 height (ftUS)",PROJCS["NAD83 / Colorado North (ftUS)",GEOGCS["NAD83",DATUM["North_American_Datum_1983",SPHEROID["GRS 1980",6378137,298.257222101,AUTHORITY["EPSG","7019"]],AUTHORITY["EPSG","6269"]],PRIMEM["Greenwich",0,AUTHORITY["EPSG","8901"]],UNIT["degree",0.0174532925199433,AUTHORITY["EPSG","9122"]],AUTHORITY["EPSG","4269"]],PROJECTION["Lambert_Conformal_Conic_2SP"],PARAMETER["latitude_of_origin",39.3333333333333],PARAMETER["central_meridian",-105.5],PARAMETER["standard_parallel_1",40.7833333333333],PARAMETER["standard_parallel_2",39.7166666666667],PARAMETER["false_easting",3000000],PARAMETER["false_northing",1000000],UNIT["US survey foot",0.304800609601219,AUTHORITY["EPSG","9003"]],AXIS["Easting",EAST],AXIS["Northing",NORTH],AUTHORITY["EPSG","2231"]],VERT_CS["NAVD88 height (ftUS)",VERT_DATUM["North American Vertical Datum 1988",2005,AUTHORITY["EPSG","5103"]],UNIT["US survey foot",0.304800609601219,AUTHORITY["EPSG","9003"]],AXIS["Gravity-related height",UP],AUTHORITY["EPSG","6360"]],AUTHORITY["EPSG","8720"]]

Read the full GeoServer guide →

How do I add EPSG:8720 to PostGIS?

Add the following definition to your PostGIS configuration:

INSERT INTO spatial_ref_sys (srid, auth_name, auth_srid, proj4text, srtext)
VALUES (8720, 'EPSG', 8720, '+proj=lcc +lat_0=39.3333333333333 +lon_0=-105.5 +lat_1=40.7833333333333 +lat_2=39.7166666666667 +x_0=914401.828803658 +y_0=304800.609601219 +datum=NAD83 +units=us-ft +vunits=us-ft +no_defs +type=crs', 'COMPD_CS["NAD83 / Colorado North (ftUS) + NAVD88 height (ftUS)",PROJCS["NAD83 / Colorado North (ftUS)",GEOGCS["NAD83",DATUM["North_American_Datum_1983",SPHEROID["GRS 1980",6378137,298.257222101,AUTHORITY["EPSG","7019"]],AUTHORITY["EPSG","6269"]],PRIMEM["Greenwich",0,AUTHORITY["EPSG","8901"]],UNIT["degree",0.0174532925199433,AUTHORITY["EPSG","9122"]],AUTHORITY["EPSG","4269"]],PROJECTION["Lambert_Conformal_Conic_2SP"],PARAMETER["latitude_of_origin",39.3333333333333],PARAMETER["central_meridian",-105.5],PARAMETER["standard_parallel_1",40.7833333333333],PARAMETER["standard_parallel_2",39.7166666666667],PARAMETER["false_easting",3000000],PARAMETER["false_northing",1000000],UNIT["US survey foot",0.304800609601219,AUTHORITY["EPSG","9003"]],AXIS["Easting",EAST],AXIS["Northing",NORTH],AUTHORITY["EPSG","2231"]],VERT_CS["NAVD88 height (ftUS)",VERT_DATUM["North American Vertical Datum 1988",2005,AUTHORITY["EPSG","5103"]],UNIT["US survey foot",0.304800609601219,AUTHORITY["EPSG","9003"]],AXIS["Gravity-related height",UP],AUTHORITY["EPSG","6360"]],AUTHORITY["EPSG","8720"]]');

Read the full PostGIS guide →

How do I add EPSG:8720 to MapServer?

Add the following definition to your MapServer configuration:

PROJECTION
  "+proj=lcc"
  "+lat_0=39.3333333333333"
  "+lon_0=-105.5"
  "+lat_1=40.7833333333333"
  "+lat_2=39.7166666666667"
  "+x_0=914401.828803658"
  "+y_0=304800.609601219"
  "+datum=NAD83"
  "+units=us-ft"
  "+vunits=us-ft"
  "+no_defs"
  "+type=crs"
END

Read the full MapServer guide →

How do I use EPSG:8720 with Proj4js?

Add the following definition to your Proj4js configuration:

proj4.defs("EPSG:8720", "+proj=lcc +lat_0=39.3333333333333 +lon_0=-105.5 +lat_1=40.7833333333333 +lat_2=39.7166666666667 +x_0=914401.828803658 +y_0=304800.609601219 +datum=NAD83 +units=us-ft +vunits=us-ft +no_defs +type=crs");

Read the full Proj4js guide →