Name: NAD27 to ATS77 (3)
Method: Maritime Provinces polynomial interpolation
Remarks: For reverse transformation see ATS77 to NAD27 (3) (code 1949).
Information source: Survey of New Brunswick.
Revision date: 2019-09-17
Unit: US survey foot
Geodetic CRS: NAD27
Datum: North American Datum 1927
Ellipsoid: Clarke 1866
Prime meridian: Greenwich
Data source: EPSG
Information source: National Geodetic Survey publication 65-1 part 52.
Revision date: 2021-05-13
Scope: Engineering survey, topographic mapping.
Remarks: From 1964 this Lambert Conic Conformal (LCC) zone replaces the northern parts of the Transverse Mercator (TM) NAD27 / Michigan East and Old Central zones (CRS codes 5623 and 5624).
Coordinate system: Cartesian 2D CS. Axes: easting, northing (X,Y). Orientations: east, north. UoM: ftUS.
Center coordinates
7265702.36 1848932.33
Projected bounds:
6897193.68 1556810.7
7639533.71 2144370.9
WGS84 bounds:
-64.49 45.9
-61.9 47.09
Definition: OGC Well Known Text 2 (2019)
PROJCRS["NAD27 / Michigan Central", 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["Michigan CS27 Central zone", METHOD["Lambert Conic Conformal (2SP Michigan)", ID["EPSG",1051]], PARAMETER["Latitude of false origin",43.3166666666667, ANGLEUNIT["degree",0.0174532925199433], ID["EPSG",8821]], PARAMETER["Longitude of false origin",-84.3333333333333, ANGLEUNIT["degree",0.0174532925199433], ID["EPSG",8822]], PARAMETER["Latitude of 1st standard parallel",44.1833333333333, ANGLEUNIT["degree",0.0174532925199433], ID["EPSG",8823]], PARAMETER["Latitude of 2nd standard parallel",45.7, ANGLEUNIT["degree",0.0174532925199433], ID["EPSG",8824]], PARAMETER["Easting at false origin",2000000, LENGTHUNIT["US survey foot",0.304800609601219], ID["EPSG",8826]], PARAMETER["Northing at false origin",0, LENGTHUNIT["US survey foot",0.304800609601219], ID["EPSG",8827]], PARAMETER["Ellipsoid scaling factor",1.0000382, SCALEUNIT["unity",1], ID["EPSG",1038]]], CS[Cartesian,2], AXIS["easting (X)",east, ORDER[1], LENGTHUNIT["US survey foot",0.304800609601219]], AXIS["northing (Y)",north, ORDER[2], LENGTHUNIT["US survey foot",0.304800609601219]], USAGE[ SCOPE["Engineering survey, topographic mapping."], AREA["United States (USA) - Michigan - counties of Alcona; Alpena; Antrim; Arenac; Benzie; Charlevoix; Cheboygan; Clare; Crawford; Emmet; Gladwin; Grand Traverse; Iosco; Kalkaska; Lake; Leelanau; Manistee; Mason; Missaukee; Montmorency; Ogemaw; Osceola; Oscoda; Otsego; Presque Isle; Roscommon; Wexford."], BBOX[43.8,-87.06,45.92,-82.27]], ID["EPSG",6201]]
Definition: ESRI Well Known Text
PROJCS["NAD27_Michigan_Central", GEOGCS["GCS_North_American_1927", DATUM["D_North_American_1927", SPHEROID["Clarke_1866",6378206.4,294.978698213898]], PRIMEM["Greenwich",0.0], UNIT["Degree",0.0174532925199433]], PROJECTION["Lambert_Conformal_Conic"], PARAMETER["False_Easting",2000000.0], PARAMETER["False_Northing",0.0], PARAMETER["Central_Meridian",-84.3333333333333], PARAMETER["Standard_Parallel_1",44.1833333333333], PARAMETER["Standard_Parallel_2",45.7], PARAMETER["Scale_Factor",1.0000382], PARAMETER["Latitude_Of_Origin",43.3166666666667], UNIT["US survey foot",0.304800609601219]]
Definition: JSON
{ "$schema": "https://proj.org/schemas/v0.7/projjson.schema.json", "type": "ProjectedCRS", "name": "NAD27 / Michigan Central", "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": "Michigan CS27 Central zone", "method": { "name": "Lambert Conic Conformal (2SP Michigan)", "id": { "authority": "EPSG", "code": 1051 } }, "parameters": [ { "name": "Latitude of false origin", "value": 43.3166666666667, "unit": "degree", "id": { "authority": "EPSG", "code": 8821 } }, { "name": "Longitude of false origin", "value": -84.3333333333333, "unit": "degree", "id": { "authority": "EPSG", "code": 8822 } }, { "name": "Latitude of 1st standard parallel", "value": 44.1833333333333, "unit": "degree", "id": { "authority": "EPSG", "code": 8823 } }, { "name": "Latitude of 2nd standard parallel", "value": 45.7, "unit": "degree", "id": { "authority": "EPSG", "code": 8824 } }, { "name": "Easting at false origin", "value": 2000000, "unit": { "type": "LinearUnit", "name": "US survey foot", "conversion_factor": 0.304800609601219 }, "id": { "authority": "EPSG", "code": 8826 } }, { "name": "Northing at false origin", "value": 0, "unit": { "type": "LinearUnit", "name": "US survey foot", "conversion_factor": 0.304800609601219 }, "id": { "authority": "EPSG", "code": 8827 } }, { "name": "Ellipsoid scaling factor", "value": 1.0000382, "unit": "unity", "id": { "authority": "EPSG", "code": 1038 } } ] }, "coordinate_system": { "subtype": "Cartesian", "axis": [ { "name": "Easting", "abbreviation": "X", "direction": "east", "unit": { "type": "LinearUnit", "name": "US survey foot", "conversion_factor": 0.304800609601219 } }, { "name": "Northing", "abbreviation": "Y", "direction": "north", "unit": { "type": "LinearUnit", "name": "US survey foot", "conversion_factor": 0.304800609601219 } } ] }, "scope": "Engineering survey, topographic mapping.", "area": "United States (USA) - Michigan - counties of Alcona; Alpena; Antrim; Arenac; Benzie; Charlevoix; Cheboygan; Clare; Crawford; Emmet; Gladwin; Grand Traverse; Iosco; Kalkaska; Lake; Leelanau; Manistee; Mason; Missaukee; Montmorency; Ogemaw; Osceola; Oscoda; Otsego; Presque Isle; Roscommon; Wexford.", "bbox": { "south_latitude": 43.8, "west_longitude": -87.06, "north_latitude": 45.92, "east_longitude": -82.27 }, "id": { "authority": "EPSG", "code": 6201 } }
Definition: Mapnik
<?xml version="1.0" encoding="utf-8"?> <Map srs="+proj=lcc +lat_0=43.3166666666667 +lon_0=-84.3333333333333 +lat_1=44.1833333333333 +lat_2=45.7 +x_0=609601.219202438 +y_0=0 +k_0=1.0000382 +datum=NAD27 +units=us-ft +no_defs +type=crs"> <Layer srs="+proj=lcc +lat_0=43.3166666666667 +lon_0=-84.3333333333333 +lat_1=44.1833333333333 +lat_2=45.7 +x_0=609601.219202438 +y_0=0 +k_0=1.0000382 +datum=NAD27 +units=us-ft +no_defs +type=crs"> </Layer> </Map>