EPSG:3774 DEPRECATED

NAD27 / Alberta 3TM ref merid 120 W

Available transformations
to EPSG:7789
EPSG:7789 - ITRF2014

Selected transformation

Grid Files: nadcon5.nad27.nad83_1986.conus.lat.trn.20160901.b nadcon5.nad27.nad83_1986.conus.lon.trn.20160901.b nadcon5.nad83_1986.nad83_harn.conus.lat.trn.20160901.b nadcon5.nad83_1986.nad83_harn.conus.lon.trn.20160901.b nadcon5.nad83_2007.nad83_2011.conus.lat.trn.20160901.b nadcon5.nad83_2007.nad83_2011.conus.lon.trn.20160901.b nadcon5.nad83_fbn.nad83_2007.conus.lat.trn.20160901.b nadcon5.nad83_fbn.nad83_2007.conus.lon.trn.20160901.b nadcon5.nad83_harn.nad83_fbn.conus.lat.trn.20160901.b nadcon5.nad83_harn.nad83_fbn.conus.lon.trn.20160901.b

Remarks: For use in new operations - see CT code 9103 for alternative for legacy data. Note that steps 1 to 5 are documented in the geog2D domain, steps 6 and 7 in the geocentric domain. Steps 6 and 7 may be implemented in one operation using CT code 8970.

Information source: IOGP

Revision date: 2019-06-13

Attributes

Unit: metre

Geodetic CRS: NAD27

Datum: North American Datum 1927

Ellipsoid: Clarke 1866

Prime meridian: Greenwich

Data source: EPSG

Information source: Alberta SRD Lands Branch, Geodetic Fact Sheets 2, 6 and 10. http://www.srd.gov.ab.ca/lands

Revision date: 2008-01-11

Scope: Cadastre, survey control and engineering survey in urban areas, typically in all municipalities that previously comprised the 73 Municipal Integrated Surveying and Mapping (MISAM) areas, also known as urban cadastral map areas. For rural areas use UTM.

Remarks: If used for rural area control markers, area of use is amended to west of 118°W; however use of NAD27 / UTM zone 11N (CRS code 26711) encouraged in these rural areas.

Area of use: Canada - Alberta - west of 118°30' W.

Coordinate system: Cartesian 2D CS. Axes: easting, northing (E,N). Orientations: east, north. UoM: m.

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Definition: OGC Well Known Text 2 (2019)

BOUNDCRS[
    SOURCECRS[
        BOUNDCRS[
            SOURCECRS[
                BOUNDCRS[
                    SOURCECRS[
                        BOUNDCRS[
                            SOURCECRS[
                                BOUNDCRS[
                                    SOURCECRS[
                                        BOUNDCRS[
                                            SOURCECRS[
                                                BOUNDCRS[
                                                    SOURCECRS[
                                                        PROJCRS["NAD27 / Alberta 3TM ref merid 120 W",
                                                            BASEGEOGCRS["NAD27",
                                                                DATUM["North American Datum 1927",
                                                                    ELLIPSOID["Clarke 1866",6378206.4,294.978698213898,
                                                                        LENGTHUNIT["metre",1]]],
                                                                PRIMEM["Greenwich",0,
                                                                    ANGLEUNIT["degree",0.0174532925199433]],
                                                                ID["EPSG",4267]],
                                                            CONVERSION["Alberta 3-degree TM reference meridian 120 W",
                                                                METHOD["Transverse Mercator",
                                                                    ID["EPSG",9807]],
                                                                PARAMETER["Latitude of natural origin",0,
                                                                    ANGLEUNIT["degree",0.0174532925199433],
                                                                    ID["EPSG",8801]],
                                                                PARAMETER["Longitude of natural origin",-120,
                                                                    ANGLEUNIT["degree",0.0174532925199433],
                                                                    ID["EPSG",8802]],
                                                                PARAMETER["Scale factor at natural origin",0.9999,
                                                                    LENGTHUNIT["metre",1],
                                                                    ID["EPSG",8805]],
                                                                PARAMETER["False easting",0,
                                                                    LENGTHUNIT["metre",1],
                                                                    ID["EPSG",8806]],
                                                                PARAMETER["False northing",0,
                                                                    LENGTHUNIT["metre",1],
                                                                    ID["EPSG",8807]]],
                                                            CS[Cartesian,2],
                                                                AXIS["(E)",east,
                                                                    ORDER[1],
                                                                    LENGTHUNIT["metre",1]],
                                                                AXIS["(N)",north,
                                                                    ORDER[2],
                                                                    LENGTHUNIT["metre",1]],
                                                            ID["EPSG",3774]]],
                                                    TARGETCRS[
                                                        GEOGCRS["NAD83",
                                                            DATUM["North American Datum 1983",
                                                                ELLIPSOID["GRS 1980",6378137,298.257222101,
                                                                    LENGTHUNIT["metre",1]]],
                                                            PRIMEM["Greenwich",0,
                                                                ANGLEUNIT["degree",0.0174532925199433]],
                                                            CS[ellipsoidal,2],
                                                                AXIS["geodetic latitude (Lat)",north,
                                                                    ORDER[1],
                                                                    ANGLEUNIT["degree",0.0174532925199433]],
                                                                AXIS["geodetic longitude (Lon)",east,
                                                                    ORDER[2],
                                                                    ANGLEUNIT["degree",0.0174532925199433]],
                                                            ID["EPSG",4269]]],
                                                    ABRIDGEDTRANSFORMATION["NAD27 to NAD83 (7)",
                                                        METHOD["NADCON5 (2D)",
                                                            ID["EPSG",1074]],
                                                        PARAMETERFILE["Latitude difference file","nadcon5.nad27.nad83_1986.conus.lat.trn.20160901.b"],
                                                        PARAMETERFILE["Longitude difference file","nadcon5.nad27.nad83_1986.conus.lon.trn.20160901.b"],
                                                        ID["EPSG",8555]]]],
                                            TARGETCRS[
                                                GEOGCRS["NAD83(HARN)",
                                                    DATUM["NAD83 (High Accuracy Reference Network)",
                                                        ELLIPSOID["GRS 1980",6378137,298.257222101,
                                                            LENGTHUNIT["metre",1]]],
                                                    PRIMEM["Greenwich",0,
                                                        ANGLEUNIT["degree",0.0174532925199433]],
                                                    CS[ellipsoidal,2],
                                                        AXIS["geodetic latitude (Lat)",north,
                                                            ORDER[1],
                                                            ANGLEUNIT["degree",0.0174532925199433]],
                                                        AXIS["geodetic longitude (Lon)",east,
                                                            ORDER[2],
                                                            ANGLEUNIT["degree",0.0174532925199433]],
                                                    ID["EPSG",4152]]],
                                            ABRIDGEDTRANSFORMATION["NAD83 to NAD83(HARN) (47)",
                                                METHOD["NADCON5 (2D)",
                                                    ID["EPSG",1074]],
                                                PARAMETERFILE["Latitude difference file","nadcon5.nad83_1986.nad83_harn.conus.lat.trn.20160901.b"],
                                                PARAMETERFILE["Longitude difference file","nadcon5.nad83_1986.nad83_harn.conus.lon.trn.20160901.b"],
                                                ID["EPSG",8556]]]],
                                    TARGETCRS[
                                        GEOGCRS["NAD83(FBN)",
                                            DATUM["NAD83 (Federal Base Network)",
                                                ELLIPSOID["GRS 1980",6378137,298.257222101,
                                                    LENGTHUNIT["metre",1]]],
                                            PRIMEM["Greenwich",0,
                                                ANGLEUNIT["degree",0.0174532925199433]],
                                            CS[ellipsoidal,2],
                                                AXIS["geodetic latitude (Lat)",north,
                                                    ORDER[1],
                                                    ANGLEUNIT["degree",0.0174532925199433]],
                                                AXIS["geodetic longitude (Lon)",east,
                                                    ORDER[2],
                                                    ANGLEUNIT["degree",0.0174532925199433]],
                                            ID["EPSG",8860]]],
                                    ABRIDGEDTRANSFORMATION["NAD83(HARN) to NAD83(FBN) (1)",
                                        METHOD["NADCON5 (3D)",
                                            ID["EPSG",1075]],
                                        PARAMETERFILE["Latitude difference file","nadcon5.nad83_harn.nad83_fbn.conus.lat.trn.20160901.b"],
                                        PARAMETERFILE["Longitude difference file","nadcon5.nad83_harn.nad83_fbn.conus.lon.trn.20160901.b"],
                                        ID["EPSG",8861]]]],
                            TARGETCRS[
                                GEOGCRS["NAD83(NSRS2007)",
                                    DATUM["NAD83 (National Spatial Reference System 2007)",
                                        ELLIPSOID["GRS 1980",6378137,298.257222101,
                                            LENGTHUNIT["metre",1]]],
                                    PRIMEM["Greenwich",0,
                                        ANGLEUNIT["degree",0.0174532925199433]],
                                    CS[ellipsoidal,2],
                                        AXIS["geodetic latitude (Lat)",north,
                                            ORDER[1],
                                            ANGLEUNIT["degree",0.0174532925199433]],
                                        AXIS["geodetic longitude (Lon)",east,
                                            ORDER[2],
                                            ANGLEUNIT["degree",0.0174532925199433]],
                                    ID["EPSG",4759]]],
                            ABRIDGEDTRANSFORMATION["NAD83(FBN) to NAD83(NSRS2007) (1)",
                                METHOD["NADCON5 (3D)",
                                    ID["EPSG",1075]],
                                PARAMETERFILE["Latitude difference file","nadcon5.nad83_fbn.nad83_2007.conus.lat.trn.20160901.b"],
                                PARAMETERFILE["Longitude difference file","nadcon5.nad83_fbn.nad83_2007.conus.lon.trn.20160901.b"],
                                ID["EPSG",8862]]]],
                    TARGETCRS[
                        GEOGCRS["NAD83(2011)",
                            DATUM["NAD83 (National Spatial Reference System 2011)",
                                ELLIPSOID["GRS 1980",6378137,298.257222101,
                                    LENGTHUNIT["metre",1]]],
                            PRIMEM["Greenwich",0,
                                ANGLEUNIT["degree",0.0174532925199433]],
                            CS[ellipsoidal,2],
                                AXIS["geodetic latitude (Lat)",north,
                                    ORDER[1],
                                    ANGLEUNIT["degree",0.0174532925199433]],
                                AXIS["geodetic longitude (Lon)",east,
                                    ORDER[2],
                                    ANGLEUNIT["degree",0.0174532925199433]],
                            ID["EPSG",6318]]],
                    ABRIDGEDTRANSFORMATION["NAD83(NSRS2007) to NAD83(2011) (1)",
                        METHOD["NADCON5 (3D)",
                            ID["EPSG",1075]],
                        PARAMETERFILE["Latitude difference file","nadcon5.nad83_2007.nad83_2011.conus.lat.trn.20160901.b"],
                        PARAMETERFILE["Longitude difference file","nadcon5.nad83_2007.nad83_2011.conus.lon.trn.20160901.b"],
                        ID["EPSG",8559]]]],
            TARGETCRS[
                GEODCRS["ITRF2008",
                    DYNAMIC[
                        FRAMEEPOCH[2005]],
                    DATUM["International Terrestrial Reference Frame 2008",
                        ELLIPSOID["GRS 1980",6378137,298.257222101,
                            LENGTHUNIT["metre",1]]],
                    PRIMEM["Greenwich",0,
                        ANGLEUNIT["degree",0.0174532925199433]],
                    CS[Cartesian,3],
                        AXIS["(X)",geocentricX,
                            ORDER[1],
                            LENGTHUNIT["metre",1]],
                        AXIS["(Y)",geocentricY,
                            ORDER[2],
                            LENGTHUNIT["metre",1]],
                        AXIS["(Z)",geocentricZ,
                            ORDER[3],
                            LENGTHUNIT["metre",1]],
                    ID["EPSG",5332]]],
            ABRIDGEDTRANSFORMATION["Inverse of ITRF2008 to NAD83(2011) (1)",
                METHOD["Inverse of Time-dependent Coordinate Frame rotation (geocen)",
                    ID["INVERSE(EPSG)",1056]],
                PARAMETER["X-axis translation",0.99343,
                    ID["EPSG",8605]],
                PARAMETER["Y-axis translation",-1.90331,
                    ID["EPSG",8606]],
                PARAMETER["Z-axis translation",-0.52655,
                    ID["EPSG",8607]],
                PARAMETER["X-axis rotation",0.02591467,
                    ID["EPSG",8608]],
                PARAMETER["Y-axis rotation",0.00942645,
                    ID["EPSG",8609]],
                PARAMETER["Z-axis rotation",0.01159935,
                    ID["EPSG",8610]],
                PARAMETER["Scale difference",1.71504,
                    ID["EPSG",8611]],
                PARAMETER["Rate of change of X-axis translation",2.50341244864579E-11,
                    ID["EPSG",1040]],
                PARAMETER["Rate of change of Y-axis translation",-1.90132591036389E-11,
                    ID["EPSG",1041]],
                PARAMETER["Rate of change of Z-axis translation",-4.24629453314602E-11,
                    ID["EPSG",1042]],
                PARAMETER["Rate of change of X-axis rotation",2.11268997406601E-12,
                    ID["EPSG",1043]],
                PARAMETER["Rate of change of Y-axis rotation",-2.40023382924337E-11,
                    ID["EPSG",1044]],
                PARAMETER["Rate of change of Z-axis rotation",-1.62658431631631E-12,
                    ID["EPSG",1045]],
                PARAMETER["Rate of change of Scale difference",-0.10201,
                    ID["EPSG",1046]],
                PARAMETER["Parameter reference epoch",1997,
                    ID["EPSG",1047]],
                ID["INVERSE(EPSG)",7807]]]],
    TARGETCRS[
        GEODCRS["ITRF2014",
            DYNAMIC[
                FRAMEEPOCH[2010]],
            DATUM["International Terrestrial Reference Frame 2014",
                ELLIPSOID["GRS 1980",6378137,298.257222101,
                    LENGTHUNIT["metre",1]]],
            PRIMEM["Greenwich",0,
                ANGLEUNIT["degree",0.0174532925199433]],
            CS[Cartesian,3],
                AXIS["(X)",geocentricX,
                    ORDER[1],
                    LENGTHUNIT["metre",1]],
                AXIS["(Y)",geocentricY,
                    ORDER[2],
                    LENGTHUNIT["metre",1]],
                AXIS["(Z)",geocentricZ,
                    ORDER[3],
                    LENGTHUNIT["metre",1]],
            USAGE[
                SCOPE["Geodesy."],
                AREA["World."],
                BBOX[-90,-180,90,180]],
            ID["EPSG",7789]]],
    ABRIDGEDTRANSFORMATION["ITRF2008 to ITRF2014 (1)",
        METHOD["Time-dependent Position Vector tfm (geocentric)",
            ID["EPSG",1053]],
        PARAMETER["X-axis translation",-0.0016,
            ID["EPSG",8605]],
        PARAMETER["Y-axis translation",-0.0019,
            ID["EPSG",8606]],
        PARAMETER["Z-axis translation",-0.0024,
            ID["EPSG",8607]],
        PARAMETER["X-axis rotation",0,
            ID["EPSG",8608]],
        PARAMETER["Y-axis rotation",0,
            ID["EPSG",8609]],
        PARAMETER["Z-axis rotation",0,
            ID["EPSG",8610]],
        PARAMETER["Scale difference",0.02,
            ID["EPSG",8611]],
        PARAMETER["Rate of change of X-axis translation",0,
            ID["EPSG",1040]],
        PARAMETER["Rate of change of Y-axis translation",0,
            ID["EPSG",1041]],
        PARAMETER["Rate of change of Z-axis translation",3.16887651727315E-12,
            ID["EPSG",1042]],
        PARAMETER["Rate of change of X-axis rotation",0,
            ID["EPSG",1043]],
        PARAMETER["Rate of change of Y-axis rotation",0,
            ID["EPSG",1044]],
        PARAMETER["Rate of change of Z-axis rotation",0,
            ID["EPSG",1045]],
        PARAMETER["Rate of change of Scale difference",-0.03,
            ID["EPSG",1046]],
        PARAMETER["Parameter reference epoch",2010,
            ID["EPSG",1047]],
        USAGE[
            SCOPE["Geodesy."],
            AREA["World."],
            BBOX[-90,-180,90,180]],
        ID["EPSG",7790],
        REMARK["Scale difference in ppb and scale difference rate in ppb/yr where 1/billion = 1E-9 or nm/m. Estimated using 127 stations at 125 sites."]]]

Definition: PROJ.4

+proj=tmerc +lat_0=0 +lon_0=-120 +k=0.9999 +x_0=0 +y_0=0 +datum=NAD27 +units=m +no_defs +type=crs

Definition: JavaScript (Proj4js) 

proj4.defs("EPSG:3774","+proj=tmerc +lat_0=0 +lon_0=-120 +k=0.9999 +x_0=0 +y_0=0 +datum=NAD27 +units=m +no_defs +type=crs");

Definition: JSON

{
    "$schema": "https://proj.org/schemas/v0.7/projjson.schema.json",
    "type": "BoundCRS",
    "source_crs": {
        "type": "BoundCRS",
        "source_crs": {
            "type": "BoundCRS",
            "source_crs": {
                "type": "BoundCRS",
                "source_crs": {
                    "type": "BoundCRS",
                    "source_crs": {
                        "type": "BoundCRS",
                        "source_crs": {
                            "type": "BoundCRS",
                            "source_crs": {
                                "type": "ProjectedCRS",
                                "name": "NAD27 / Alberta 3TM ref merid 120 W",
                                "base_crs": {
                                    "name": "NAD27",
                                    "datum": {
                                        "type": "GeodeticReferenceFrame",
                                        "name": "North American Datum 1927",
                                        "ellipsoid": {
                                            "name": "Clarke 1866",
                                            "semi_major_axis": 6378206.4,
                                            "semi_minor_axis": 6356583.8
                                        }
                                    },
                                    "coordinate_system": {
                                        "subtype": "ellipsoidal",
                                        "axis": [
                                            {
                                                "name": "Geodetic latitude",
                                                "abbreviation": "Lat",
                                                "direction": "north",
                                                "unit": "degree"
                                            },
                                            {
                                                "name": "Geodetic longitude",
                                                "abbreviation": "Lon",
                                                "direction": "east",
                                                "unit": "degree"
                                            }
                                        ]
                                    },
                                    "id": {
                                        "authority": "EPSG",
                                        "code": 4267
                                    }
                                },
                                "conversion": {
                                    "name": "Alberta 3-degree TM reference meridian 120 W",
                                    "method": {
                                        "name": "Transverse Mercator",
                                        "id": {
                                            "authority": "EPSG",
                                            "code": 9807
                                        }
                                    },
                                    "parameters": [
                                        {
                                            "name": "Latitude of natural origin",
                                            "value": 0,
                                            "unit": "degree",
                                            "id": {
                                                "authority": "EPSG",
                                                "code": 8801
                                            }
                                        },
                                        {
                                            "name": "Longitude of natural origin",
                                            "value": -120,
                                            "unit": "degree",
                                            "id": {
                                                "authority": "EPSG",
                                                "code": 8802
                                            }
                                        },
                                        {
                                            "name": "Scale factor at natural origin",
                                            "value": 0.9999,
                                            "unit": "metre",
                                            "id": {
                                                "authority": "EPSG",
                                                "code": 8805
                                            }
                                        },
                                        {
                                            "name": "False easting",
                                            "value": 0,
                                            "unit": "metre",
                                            "id": {
                                                "authority": "EPSG",
                                                "code": 8806
                                            }
                                        },
                                        {
                                            "name": "False northing",
                                            "value": 0,
                                            "unit": "metre",
                                            "id": {
                                                "authority": "EPSG",
                                                "code": 8807
                                            }
                                        }
                                    ]
                                },
                                "coordinate_system": {
                                    "subtype": "Cartesian",
                                    "axis": [
                                        {
                                            "name": "Easting",
                                            "abbreviation": "E",
                                            "direction": "east",
                                            "unit": "metre"
                                        },
                                        {
                                            "name": "Northing",
                                            "abbreviation": "N",
                                            "direction": "north",
                                            "unit": "metre"
                                        }
                                    ]
                                },
                                "id": {
                                    "authority": "EPSG",
                                    "code": 3774
                                }
                            },
                            "target_crs": {
                                "type": "GeographicCRS",
                                "name": "NAD83",
                                "datum": {
                                    "type": "GeodeticReferenceFrame",
                                    "name": "North American Datum 1983",
                                    "ellipsoid": {
                                        "name": "GRS 1980",
                                        "semi_major_axis": 6378137,
                                        "inverse_flattening": 298.257222101
                                    }
                                },
                                "coordinate_system": {
                                    "subtype": "ellipsoidal",
                                    "axis": [
                                        {
                                            "name": "Geodetic latitude",
                                            "abbreviation": "Lat",
                                            "direction": "north",
                                            "unit": "degree"
                                        },
                                        {
                                            "name": "Geodetic longitude",
                                            "abbreviation": "Lon",
                                            "direction": "east",
                                            "unit": "degree"
                                        }
                                    ]
                                },
                                "id": {
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                                }
                            },
                            "transformation": {
                                "name": "NAD27 to NAD83 (7)",
                                "method": {
                                    "name": "NADCON5 (2D)",
                                    "id": {
                                        "authority": "EPSG",
                                        "code": 1074
                                    }
                                },
                                "parameters": [
                                    {
                                        "name": "Latitude difference file",
                                        "value": "nadcon5.nad27.nad83_1986.conus.lat.trn.20160901.b",
                                        "id": {
                                            "authority": "EPSG",
                                            "code": 8657
                                        }
                                    },
                                    {
                                        "name": "Longitude difference file",
                                        "value": "nadcon5.nad27.nad83_1986.conus.lon.trn.20160901.b",
                                        "id": {
                                            "authority": "EPSG",
                                            "code": 8658
                                        }
                                    }
                                ],
                                "id": {
                                    "authority": "EPSG",
                                    "code": 8555
                                }
                            }
                        },
                        "target_crs": {
                            "type": "GeographicCRS",
                            "name": "NAD83(HARN)",
                            "datum": {
                                "type": "GeodeticReferenceFrame",
                                "name": "NAD83 (High Accuracy Reference Network)",
                                "ellipsoid": {
                                    "name": "GRS 1980",
                                    "semi_major_axis": 6378137,
                                    "inverse_flattening": 298.257222101
                                }
                            },
                            "coordinate_system": {
                                "subtype": "ellipsoidal",
                                "axis": [
                                    {
                                        "name": "Geodetic latitude",
                                        "abbreviation": "Lat",
                                        "direction": "north",
                                        "unit": "degree"
                                    },
                                    {
                                        "name": "Geodetic longitude",
                                        "abbreviation": "Lon",
                                        "direction": "east",
                                        "unit": "degree"
                                    }
                                ]
                            },
                            "id": {
                                "authority": "EPSG",
                                "code": 4152
                            }
                        },
                        "transformation": {
                            "name": "NAD83 to NAD83(HARN) (47)",
                            "source_crs": {
                                "type": "GeographicCRS",
                                "name": "NAD83",
                                "datum": {
                                    "type": "GeodeticReferenceFrame",
                                    "name": "North American Datum 1983",
                                    "ellipsoid": {
                                        "name": "GRS 1980",
                                        "semi_major_axis": 6378137,
                                        "inverse_flattening": 298.257222101
                                    }
                                },
                                "coordinate_system": {
                                    "subtype": "ellipsoidal",
                                    "axis": [
                                        {
                                            "name": "Geodetic latitude",
                                            "abbreviation": "Lat",
                                            "direction": "north",
                                            "unit": "degree"
                                        },
                                        {
                                            "name": "Geodetic longitude",
                                            "abbreviation": "Lon",
                                            "direction": "east",
                                            "unit": "degree"
                                        }
                                    ]
                                },
                                "id": {
                                    "authority": "EPSG",
                                    "code": 4269
                                }
                            },
                            "method": {
                                "name": "NADCON5 (2D)",
                                "id": {
                                    "authority": "EPSG",
                                    "code": 1074
                                }
                            },
                            "parameters": [
                                {
                                    "name": "Latitude difference file",
                                    "value": "nadcon5.nad83_1986.nad83_harn.conus.lat.trn.20160901.b",
                                    "id": {
                                        "authority": "EPSG",
                                        "code": 8657
                                    }
                                },
                                {
                                    "name": "Longitude difference file",
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                                "code": 8556
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                                    "unit": "degree"
                                },
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                                        "unit": "degree"
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                                        "name": "Geodetic longitude",
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                        },
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                            "direction": "geocentricY",
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                        },
                        {
                            "name": "Geocentric Z",
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                    ]
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                    "code": 6317
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            },
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                "id": {
                    "authority": "INVERSE(EPSG)",
                    "code": 1056
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            },
            "parameters": [
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                {
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}

Definition: MapServer - MAPfile

PROJECTION
	"proj=tmerc"
	"lat_0=0"
	"lon_0=-120"
	"k=0.9999"
	"x_0=0"
	"y_0=0"
	"datum=NAD27"
	"units=m"
	"no_defs"
	"type=crs"
END

Definition: Mapnik

<?xml version="1.0" encoding="utf-8"?>
<Map srs="+proj=tmerc +lat_0=0 +lon_0=-120 +k=0.9999 +x_0=0 +y_0=0 +datum=NAD27 +units=m +no_defs +type=crs">
	<Layer srs="+proj=tmerc +lat_0=0 +lon_0=-120 +k=0.9999 +x_0=0 +y_0=0 +datum=NAD27 +units=m +no_defs +type=crs">
	</Layer>
</Map>