EPSG:6201 - NAD27 / Michigan Central

{
  "$schema": "https://proj.org/schemas/v0.7/projjson.schema.json",
  "type": "ProjectedCRS",
  "name": "NAD27 / Michigan Central",
  "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": "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
  }
}

{'crs_wkt': '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]]'}