EPSG:26717

NAD27 / UTM zone 17N

Available transformations
to EPSG:8246
EPSG:8246 - NAD83(CSRS)v4

Selected transformation

Name: NAD27 to NAD83(CSRS)v4 (10)

Method: NTv2

Grid Files: BC_27_05.GSB

Remarks: Derived through NAD83(CSRS)v4.

Information source: GeoBC, Government of British Columbia, via ISO Geodetic Register.

Revision date: 2026-02-10

Attributes

Unit: metre

Geodetic CRS: NAD27

Datum: North American Datum 1927

Ellipsoid: Clarke 1866

Prime meridian: Greenwich

Data source: EPSG

Revision date: 2021-03-18

Scope: Engineering survey, topographic mapping.

Remarks: In Ontario replaced by NAD27(76) / UTM zone 17N (code 2029). In Quebec replaced by NAD27(CGQ77) / UTM zone 17N (code 2031). See NAD27 / BLM 17N (ftUS) (code 32067) for non-metric equivalent used in US Gulf of Mexico.

Area of use: North America - between 84°W and 78°W. Bahamas. Canada - Nunavut; Ontario; Quebec. Costa Rica. Cuba. Honduras. Nicaragua. United States (USA) - Florida; Georgia; Kentucky; Maryland; Michigan; New York; North Carolina; Ohio; Pennsylvania; South Carolina; Tennessee; Virginia; West Virginia. Onshore for Canadian Arctic. onshore and offshore for US east coast and Cuba, with usage in Bahamas onshore plus offshore over internal continental shelf only.

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

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SimpleMap

Center coordinates
-2299227.67 7022252.2

Projected bounds:
-3456764.86 5984734.72
-1301731.85 8054926.83

WGS84 bounds:
-138.07 48.99
-114.33 60.01

Canada - British Columbia - mainland between 138°05'W and 114°20'W and Graham Island.
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Definition: OGC Well Known Text 2 (2019)

BOUNDCRS[
    SOURCECRS[
        PROJCRS["NAD27 / UTM zone 17N",
            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["UTM zone 17N",
                METHOD["Transverse Mercator",
                    ID["EPSG",9807]],
                PARAMETER["Latitude of natural origin",0,
                    ANGLEUNIT["degree",0.0174532925199433],
                    ID["EPSG",8801]],
                PARAMETER["Longitude of natural origin",-81,
                    ANGLEUNIT["degree",0.0174532925199433],
                    ID["EPSG",8802]],
                PARAMETER["Scale factor at natural origin",0.9996,
                    SCALEUNIT["unity",1],
                    ID["EPSG",8805]],
                PARAMETER["False easting",500000,
                    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]],
            USAGE[
                SCOPE["Engineering survey, topographic mapping."],
                AREA["North America - between 84°W and 78°W. Bahamas. Canada - Nunavut; Ontario; Quebec. Costa Rica. Cuba. Honduras. Nicaragua. United States (USA) - Florida; Georgia; Kentucky; Maryland; Michigan; New York; North Carolina; Ohio; Pennsylvania; South Carolina; Tennessee; Virginia; West Virginia. Onshore for Canadian Arctic. onshore and offshore for US east coast and Cuba, with usage in Bahamas onshore plus offshore over internal continental shelf only."],
                BBOX[7.98,-84,83.03,-78]],
            ID["EPSG",26717]]],
    TARGETCRS[
        GEOGCRS["NAD83(CSRS)v4",
            DATUM["North American Datum of 1983 (CSRS) version 4",
                ELLIPSOID["GRS 1980",6378137,298.257222101,
                    LENGTHUNIT["metre",1]],
                ANCHOREPOCH[2002]],
            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]],
            USAGE[
                SCOPE["Horizontal component of 3D system."],
                AREA["Canada - onshore and offshore - Alberta; British Columbia; Manitoba; New Brunswick; Newfoundland and Labrador; Northwest Territories; Nova Scotia; Nunavut; Ontario; Prince Edward Island; Quebec; Saskatchewan; Yukon."],
                BBOX[38.21,-141.01,86.46,-40.73]],
            ID["EPSG",8246],
            REMARK["Adopted by the Canadian federal government from 2002-01-01 and by the provincial governments of Alberta and British Columbia. Replaces NAD83(CSRS)v3. Replaced by NAD83(CSRS)v5 (CRS code 8249). Longitudes are POSITIVE EAST."]]],
    ABRIDGEDTRANSFORMATION["NAD27 to NAD83(CSRS)v4 (10)",
        METHOD["NTv2",
            ID["EPSG",9615]],
        PARAMETERFILE["Latitude and longitude difference file","BC_27_05.GSB"],
        USAGE[
            SCOPE["Geodesy."],
            AREA["Canada - British Columbia - mainland between 138°05'W and 114°20'W and Graham Island."],
            BBOX[48.99,-138.07,60.01,-114.33]],
        ID["EPSG",9115],
        REMARK["Derived through NAD83(CSRS)v4."]]]

Definition: PROJ.4

+proj=utm +zone=17 +datum=NAD27 +units=m +no_defs +type=crs

Definition: JavaScript (Proj4js) 

proj4.defs("EPSG:26717","+proj=utm +zone=17 +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": "ProjectedCRS",
        "name": "NAD27 / UTM zone 17N",
        "base_crs": {
            "type": "GeographicCRS",
            "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
            },
            "remarks": "Note: this CRS includes longitudes which are POSITIVE EAST. Replaced by NAD27(76) (code 4608) in Ontario, CGQ77 (code 4609) in Quebec, Mexican Datum of 1993 (code 4483) in Mexico, NAD83 (code 4269) in Canada (excl. Ontario & Quebec) & USA."
        },
        "conversion": {
            "name": "UTM zone 17N",
            "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": -81,
                    "unit": "degree",
                    "id": {
                        "authority": "EPSG",
                        "code": 8802
                    }
                },
                {
                    "name": "Scale factor at natural origin",
                    "value": 0.9996,
                    "unit": "unity",
                    "id": {
                        "authority": "EPSG",
                        "code": 8805
                    }
                },
                {
                    "name": "False easting",
                    "value": 500000,
                    "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": 26717
        }
    },
    "target_crs": {
        "type": "GeographicCRS",
        "name": "NAD83(CSRS)v4",
        "datum": {
            "type": "GeodeticReferenceFrame",
            "name": "North American Datum of 1983 (CSRS) version 4",
            "anchor_epoch": 2002,
            "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": 8246
        },
        "remarks": "Adopted by the Canadian federal government from 2002-01-01 and by the provincial governments of Alberta and British Columbia. Replaces NAD83(CSRS)v3. Replaced by NAD83(CSRS)v5 (CRS code 8249). Longitudes are POSITIVE EAST."
    },
    "transformation": {
        "name": "NAD27 to NAD83(CSRS)v4 (10)",
        "method": {
            "name": "NTv2",
            "id": {
                "authority": "EPSG",
                "code": 9615
            }
        },
        "parameters": [
            {
                "name": "Latitude and longitude difference file",
                "value": "BC_27_05.GSB",
                "id": {
                    "authority": "EPSG",
                    "code": 8656
                }
            }
        ],
        "id": {
            "authority": "EPSG",
            "code": 9115
        }
    }
}

Definition: MapServer - MAPfile

PROJECTION
	"proj=utm"
	"zone=17"
	"datum=NAD27"
	"units=m"
	"no_defs"
	"type=crs"
END

Definition: Mapnik

<?xml version="1.0" encoding="utf-8"?>
<Map srs="+proj=utm +zone=17 +datum=NAD27 +units=m +no_defs +type=crs">
	<Layer srs="+proj=utm +zone=17 +datum=NAD27 +units=m +no_defs +type=crs">
	</Layer>
</Map>